Use fresh yogurt with food at Sehri time. If not much than 3 or 3 table spoons you can use, it is very effective. Do not backbite and take at least 2 to 3 glass of water at Sehri time. Do not make much noise and do not talk about hotness or thirst. Keep yourself busy in routine matters. Insha’Allah you’re not feel hotness or thirst and if you feel than recall the saying of Allah’s Lion Hazrat Ali (رضی اللہ عنہ) that whosoever wants to stay away from hells fire, should observe summer fasts. (Sajida Farhat, Lahore)