Flooding doesn’t only damage property, it also brings along invisible health threats, especially from contaminated water, infectious germs, and dangerous animals carried by the flood current. Today, we’ll take a look at the 3 most common post-flood diseases, along with effective prevention and self-care guidelines.
1. Gastrointestinal Diseases
After floods, water sources, food, and household containers are often contaminated with pathogens such as bacteria, viruses, and parasites. This can cause symptoms like:
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Diarrhea
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Stomach pain
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Vomiting
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Food poisoning
Prevention Tips
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Drink and use only clean water (preferably boiled or sealed bottled water)
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Avoid food that has been exposed to floodwater
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Wash hands before eating and after using the restroom
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Clean kitchen utensils and dishes using clean water and disinfectant
Basic First-Aid
If diarrhea occurs, drink oral rehydration solution (ORS) to replace lost fluids and minerals. If symptoms worsen, high fever develops, or there is blood in the stool, seek immediate medical care.
2. Skin Diseases / Athlete’s Foot (Foot Rot from Water Exposure)
Stagnant floodwater is highly humid and unhygienic, increasing the risk of infection—especially fungal and bacterial skin infections. Symptoms may include:
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Itching, redness, or rash
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Peeling or cracked skin
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Blisters or open sores
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Foul odor from infection
Prevention Tips
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Avoid soaking in floodwater for long periods
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Wear waterproof boots when walking through flooded areas
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Wash skin and feet with clean water immediately after exposure
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Dry thoroughly, especially between toes
Basic First-Aid
If itching or rash appears, apply antifungal treatment or medicated creams to prevent infection. Do not scratch or pick at infected skin, as it may worsen the condition.
3. Diseases from Venomous or Dangerous Animals
Flooding forces ground-dwelling creatures to seek higher ground or drift into communities, including:
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Snakes
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Centipedes
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Scorpions
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Toxic insects
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Mosquitoes that may carry diseases such as dengue, malaria, or chikungunya
Prevention Tips
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Be cautious around dark, damp corners and piled belongings
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Wear gloves and waterproof boots when cleaning the house
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Seal doors, windows, and drainage pipes
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Use mosquito repellent and remove stagnant water to reduce mosquito breeding
Basic Care for Bites or Stings
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Clean wounds with clean water and disinfectant
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If bitten by a potentially venomous animal (such as a poisonous snake), do not delay—go to the hospital immediately
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Try to remember the appearance of the animal to inform medical professionals for proper treatment
Conclusion
Floods may be unavoidable, but diseases are preventable. Maintaining hygiene, wearing protective gear, and knowing correct self-care steps are key during these situations. During crises, prioritize health and always prepare essential items such as:
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Clean water
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Household medicines
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ORS packets
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Protective equipment
