Travel Medicine

Heat exhaustion vs heat stroke comes down to two checks: skin and mind. Heat exhaustion means heavy sweating, cool clammy skin, and dizziness, but clear thinking. Cool down, sip electrolytes, and rest. Heat stroke means hot dry skin, little or no sweating, and confusion. That is a medical emergency. Call for help and cool the person fast.

Heat stroke while hiking in Koh Samui usually follows the same script: a steep jungle trail, a start time near noon, too little water, and no shade at the top. The fix is simple. Hike at sunrise or late afternoon, carry two liters of water per person, rest in shade often, and turn back the moment anyone feels dizzy or confused.

Blistering sunburn treatment starts at home: cool the skin, drink plenty of fluids, and never pop the blisters. But a blistering burn is a second-degree burn. See a doctor if blisters cover a large area, if you have fever, chills, nausea, or dizziness, or if you see spreading redness, pus, or pain that keeps getting worse.

You burn faster in Thailand because the country sits near the equator, so the sun strikes almost straight down and the UV index often reaches extreme levels. Clouds block heat, not most UV. Sand and sea reflect the rays back at you, and the breeze hides the warning sting. Reapply sunscreen every two hours, especially on boats.

Swimmer’s ear in Koh Samui is very common after days in pools and warm sea water. It causes itchy, painful ears that hurt when you tug the earlobe. Most cases clear fast with prescription drops and gentle ear cleaning at a clinic. Doctor Samui on Chaweng Beach Road treats swimmer’s ear 24/7, with free WhatsApp quotes and direct insurance billing.

Can I dive with ear pain? The safe answer is no. A sore ear usually cannot equalize, and forcing it down can burst the eardrum or cause barotrauma that ends your whole trip. Get the ear checked before your Koh Tao boat leaves. Doctor Samui checks ears 24/7 on Chaweng Beach Road, and most divers are back underwater within days.

Jellyfish sting first aid in Thailand is simple: pour vinegar over the sting for at least 30 seconds, lift off any tentacles with tweezers, then use hot water or a hot pack for the pain. Never rinse with fresh water, rub sand on it, or use urine. For breathing trouble, chest pain, or a stung child, get medical help fast.

Coral cuts get infected so often because coral leaves tiny fragments, slime, and sea bacteria deep in the wound, and Samui’s warm, humid climate helps germs grow. Wash the cut hard and early, keep it dry, and watch for spreading redness. A coral cut infection needs a doctor; Doctor Samui cleans and dresses reef wounds 24/7 in Chaweng.

Blocked ears after flying or diving usually come from one of three things: pressure that has not equalized, ear wax pushed against the eardrum, or an infection. Pressure often clears within hours with swallowing and yawning. Wax needs safe removal. Pain, fever, or discharge points to infection and needs a doctor. Never fly on a painful ear before a check.

Stepped on a sea urchin? Soak the foot in comfortably hot water for the pain, pull out only loose surface spines with tweezers, and never dig for deep ones. Sea urchin spine removal is a clinic job: spines snap easily, and buried pieces cause infection and painful lumps. Doctor Samui removes spines safely 24/7 on Chaweng Beach Road.