Drink less, eat less spicy food and eat less food that may cause fever. On the contrary, you can eat more bitter gourd, mung bean soup, watermelon, cold drinks and other foods. Don't let him eat too much delicious food on weekdays. Snacks such as chocolate, biscuits and French fries are also very hot, so he should try to eat as little as possible.
Drink plenty of water, of course, it is best to consult a doctor. Do you understand this?