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