Body overheating due to high temperatures and dehydration. Symptoms include heavy sweating, rapid pulse, and dizziness.
Step-by-Step Guidance
Move the patient out of the sun into an air-conditioned room or shade.

Take off excess layers of clothing. Loosen tight collars, shirts, and socks.

Apply cool, damp cloths to the neck, forehead, and armpits. Fan the patient vigorously.

Give them cool water, a sports drink, or oral rehydration solution. Have them take small sips.

Have them lie down with legs slightly elevated. Monitor for signs of heatstroke (lack of sweat, confusion).

24 - 48 hours
Timeline is typical for uncomplicated healing. Always follow doctor guidance.