Don't worry. You will be fine. Sudden change in weather and increase in heat has led to air becoming dry and this leads to dryness. Just take frequent sips of water, suck on a lozenge few times in a day, stay indoors and switch on the AC.
Next Steps
Relax, stay indoors and use AC. Frequent sips and suck on lozenge few times in a day
Health Tips
In case of any unusual symptom, like high fever or severe headache, rush to nearest hospital.