Medical Preparedness for Disasters: A Practical Guide for Filipino Households

When a typhoon knocks out power for a week, or an earthquake closes the roads to the nearest hospital, the health problems that follow are rarely dramatic. They are ordinary things that became difficult: a maintenance medicine that ran out, a wound that was not cleaned properly, floodwater that someone waded through in slippers.

In disaster response work, this pattern repeats. The injuries from the event itself get attention in the first hours. What fills the clinics in the following days are infections, untreated chronic conditions, and problems that would have been minor if supplies and records had been on hand. Most of that is preventable at the household level, and the preparation costs very little.

This guide covers medical preparedness for Filipino households: what to keep in a home medical kit, how to handle maintenance medicines and refrigerated ones like insulin, what to do about PhilHealth and health records, and the two rainy-season illnesses — dengue and leptospirosis — that follow floods most predictably. It is written for households, not clinicians, and none of it replaces advice from your own doctor.

Start with the medicines you already take every day

For most families, the biggest medical risk in a disaster is not injury. It is a maintenance medicine running out — for hypertension, diabetes, asthma, epilepsy, thyroid conditions, heart disease, or mental health.

Pharmacies close. Roads flood. Supply trucks are delayed. A person who normally refills every 30 days may be unable to for a week or more, and for some conditions, stopping abruptly carries real risk.

The practical approach:

• Aim for a buffer, not a stockpile. Ask your doctor whether keeping an extra 7 to 14 days’ supply is appropriate for your specific medicines. Some can be prescribed with a buffer; some are controlled and cannot. This is a conversation to have at your next regular check-up, not something to arrange during a storm.
• Rotate it. Keep the buffer in your normal supply cycle so it never expires — use the oldest first and replace it at each refill. A buffer that expired two years ago is not a buffer.
• Write down the details. Generic name, brand, dose, frequency, and prescribing doctor. If you evacuate and the medicine is left behind, this list is what lets a pharmacist or clinic help you. A photo of each box and of the prescription, stored in your phone and backed up, takes two minutes.
• Keep a few days’ worth in the go-bag itself, separate from the main supply at home. If the house becomes inaccessible, you still have something.

Storage matters as much as quantity. Heat and humidity degrade many medicines, and a plastic bin in a hot room during a multi-day outage is a poor place for them. A sealed container in the coolest part of the house, away from direct sunlight, is a reasonable default. Check the package insert — some medicines have specific storage requirements you should follow rather than guess at.

Refrigerated medicines when the power goes out

Insulin is the most common case, but the same problem applies to certain eye drops, some antibiotics in suspension, and other refrigerated products.

The general principles, which you should confirm against your own product’s insert and with your pharmacist:

• Unopened insulin is normally stored refrigerated. In-use insulin can typically be kept at room temperature for a limited period — often around 28 days, but this varies by product. Check yours specifically.
• A closed refrigerator holds cold for several hours. Do not open it repeatedly during an outage. Moving refrigerated medicines to a cooler with ice packs, kept closed, is usually better than opening the fridge every hour.
• Do not let it freeze. Insulin that has frozen should not be used. Direct contact with ice packs can freeze it — wrap it, and keep a layer between the medicine and the ice.
• Extreme heat is also a problem. A car dashboard or a sealed bag in the sun can exceed safe temperatures quickly.
• If in doubt about whether a medicine is still safe to use, ask a pharmacist or your doctor rather than deciding on your own. For life-sustaining medicines, this is worth a phone call even during a disruption.

If someone in the household depends on refrigerated medicine, a small cooler and a few reusable ice packs kept in the freezer are among the highest-value items you can prepare. They cost little and are useful in every outage, not only in disasters.

What actually belongs in a home medical kit

Commercial first aid kits tend to be heavy on adhesive bandages and light on the things that matter after a flood. A more useful kit, built around what households actually run out of:

Wound care — sterile gauze pads in two sizes, roller bandage, adhesive tape, non-woven adhesive dressings, and a way to clean wounds (clean water plus mild soap works; povidone-iodine or an antiseptic solution is a useful addition). Disposable gloves — several pairs, not one.

Basic tools — scissors, tweezers, a digital thermometer, and a small flashlight or headlamp. Treating anything by phone light with one hand is worse than it sounds.

Oral rehydration salts (ORS) — several sachets. Diarrhoea after a disaster is common, and dehydration is what turns it dangerous, particularly in small children and older adults. ORS is inexpensive, stores well, and is one of the few items on this list that genuinely changes outcomes.

Over-the-counter medicines you already use and tolerate — paracetamol for fever and pain, an oral rehydration option, and anything your family relies on routinely. Do not stock unfamiliar medicines to use for the first time during a crisis.

Personal items — spare eyeglasses, contact lens solution, hearing aid batteries, and menstrual supplies. These are the items most often forgotten and least available in an evacuation centre.

Hygiene — alcohol-based hand rub, wet wipes, and soap. During a water outage, hand hygiene is the single largest determinant of whether gastroenteritis spreads through the household. This connects directly to water safety, which is covered in more detail here: Clean Water After a Flood: What Filipino Households Need to Know.

What does not belong: antibiotics kept “just in case” and taken without a diagnosis. Self-medicating with leftover antibiotics is a genuine problem, contributes to resistance, and can mask a condition that needs proper care.

Dengue and leptospirosis: the two that follow the rain

These deserve specific attention because their timing is predictable — both increase after flooding and standing water, which in the Philippines means the months when preparedness matters most anyway.

Leptospirosis is associated with contact between floodwater and broken skin or mucous membranes. The practical prevention is straightforward:

• Avoid wading through floodwater whenever there is any alternative. This is also the right call for other reasons — you cannot see open manholes, debris, or live electrical hazards under murky water.
• If wading is unavoidable, cover any cuts or abrasions beforehand with a waterproof dressing, and wear boots rather than slippers.
• Wash exposed skin with clean water and soap as soon as possible afterwards.
• If you did wade through floodwater and later develop fever, muscle pain (especially in the calves), or other symptoms, tell a health worker about the floodwater exposure. That detail changes how the illness is assessed. Do not wait it out, and do not self-treat.

Dengue is mosquito-borne, and the mosquitoes breed in standing clean water — which accumulates everywhere after a storm. Prevention is about removing breeding sites:

• Empty and scrub containers holding standing water: buckets, tyres, plant saucers, roof gutters, unused drums. Do this in the days after the rain, when attention has moved on.
• Cover water storage containers. During a water outage you will be storing more water than usual — cover it, both for mosquito control and for drinking safety.
• Use mosquito nets, repellent, and long sleeves, especially for children during daytime hours.
• Fever after a storm should not be dismissed. Seek assessment from a health facility rather than managing it at home, particularly if there is fever with severe headache, rash, or persistent vomiting.

This article does not attempt to describe how to diagnose or treat either illness. That is a clinician’s job. What a household can do is reduce exposure and recognise that fever after floodwater contact is a reason to seek care, not to wait.

Health records, PhilHealth, and the paperwork problem

An underrated part of medical preparedness is documentation. When someone arrives at an unfamiliar facility during a disaster, having their information immediately available changes how quickly they can be helped.

Prepare a one-page household health summary, one per person, covering:

• Full name, date of birth, blood type if known
• Existing conditions and current medicines (generic names and doses)
• Known allergies — especially drug allergies
• Doctor’s name and clinic contact
• PhilHealth number, and any HMO or private insurance details
• Emergency contact, including one person outside your immediate area

Keep it three ways: a printed copy in a waterproof sleeve inside the go-bag, a photo on each adult’s phone, and a copy stored somewhere accessible online. Paper survives a dead battery; the phone copy survives a lost bag.

On PhilHealth specifically: keep your member details recorded and know your membership status before you need it. Requirements and coverage change, so verify current rules directly with PhilHealth rather than relying on secondhand information. During large disasters, government agencies sometimes announce temporary adjustments to normal procedures — those announcements come through official channels, and it is worth knowing where to look for them.

Keeping the family able to reach each other matters just as much as the records themselves. If your household has not settled that, this covers it: Family Communication Plan for Disasters, and for the case where networks are down entirely, Emergency Radio When Cell Networks Go Down.

Special situations worth planning for now

Pregnancy. If someone in the household is pregnant, discuss a contingency plan with the attending physician well before any storm: which facility to go to if the usual one is unreachable, what records to carry, and what warning signs warrant seeking care immediately regardless of conditions outside.

Infants and young children. Formula, feeding supplies, and clean water for preparation need to be planned as a set. Sterilising equipment requires water and heat, both of which may be limited. Discuss alternatives with a health worker in advance rather than improvising.

Older adults. Mobility aids, more medicines, and higher vulnerability to heat, dehydration, and disrupted routines. Note in the health summary anything a stranger would need to know within the first minute of helping them.

Persons with disabilities. Assistive devices, spare batteries, and a written note of communication needs. Evacuation centres are noisy and crowded; a written card explaining what someone needs can be more effective than trying to explain verbally in that environment.

Mental health. Anxiety, poor sleep, and difficulty concentrating are common responses after a disaster and generally ease with time, rest, and social support. If someone is on psychiatric medication, treat it with the same continuity planning as any other maintenance medicine. If distress is severe or persistent, that warrants professional support rather than waiting.

Judgment points

Questions to run through when the situation is unfolding:

• How many days of maintenance medicine are left? Under 5 days with disruption ongoing — start working on resupply now, do not wait until the last dose.
• Has anyone had skin contact with floodwater? Wash with clean water and soap, and treat any subsequent fever as a reason to seek care and mention the exposure.
• Is anyone vomiting or having diarrhoea? Start oral rehydration early. Signs of dehydration — very little urine, sunken eyes, lethargy, especially in children or older adults — mean seeking care, not waiting.
• Is a refrigerated medicine warm? Do not guess. Ask a pharmacist whether it is still usable.
• Does the situation look serious? Difficulty breathing, chest pain, uncontrolled bleeding, confusion, or a seizure — call emergency services or get to a facility. Access being difficult is a reason to start earlier, not to stay home.

The thread running through all of these: the decisions that go wrong are usually delays. Waiting to see if the fever passes, waiting until the medicine is completely gone, waiting for the road to clear. Starting earlier costs almost nothing.

What to do today

1. Count your medicines. Go through every maintenance medicine in the house and write down how many days each one covers. This takes ten minutes and tells you your actual position.

2. Photograph the boxes and prescriptions. All of them. Save to your phone and back them up.

3. Write one health summary page per person. Print it, put it in a resealable bag, put it in the go-bag.

4. Check the expiry dates in your first aid kit. ORS sachets and antiseptic solutions in particular tend to be years past date in kits that have not been opened.

If there is time for a fifth item: raise the medicine buffer question at your family’s next clinic visit. It is a short conversation and it is the item on this list with the most impact.

Summary

Medical preparedness for disasters is mostly unglamorous. The high-value items are a buffer of the medicines you already take, a written record of what everyone needs, oral rehydration salts, hand hygiene supplies, and a cooler for anything refrigerated. Against the two illnesses that reliably follow Philippine floods, the useful actions are avoiding floodwater contact where possible and clearing standing water afterwards.

None of this requires medical knowledge. It requires knowing what your household already depends on, and making sure those things survive a week of disruption. That is a task for an ordinary afternoon, and it is worth doing before the forecast makes it urgent.

Sources and further reading

• Department of Health (DOH) — health advisories and disease information: https://doh.gov.ph/
• NDRRMC — national disaster risk reduction and management advisories: https://ndrrmc.gov.ph/
• PAGASA — weather and tropical cyclone bulletins: https://www.pagasa.dost.gov.ph/
• Philippine Red Cross — first aid and emergency response: https://redcross.org.ph/

This article is general preparedness information and is not medical advice. It does not diagnose, treat, or replace consultation with a qualified health professional. Discuss your household’s specific medicines, conditions, and contingency plans with your own doctor or pharmacist, and follow the current guidance of the DOH and your local government unit.