Its a said that,
A drop of lemon juice can purify a cup of water.
And we also know that water is great purifier of our body.
So combination of water and lemon juice can b useful to remove the toxins from stomach n body. In this summer days try to consume lemon juice or lemon tea once in a day to fight against high temperatures.You can add Elaychi(cardamom), sugar or glucose powder, Herb Khas(ushir) to make it more delicious. This is the simplest way to beat heat and make yourself healthy and cool in this hot summer.