If ayurvedic medicines are available then give him
Dhanwantaram tab 2-2-2 before food
Madipala rasayana 2tsp 15min before food
Kamaduga ras 2-0-2 before food
If not then give him cumin kashaya prepared in home...
Method of preparation is take 1 glass of water boil it while boiling add some cumin seeds and boil till it reduces to half glass. Drink it twice a day.
Next Steps
Drink hot water regularly. Avoid curds junk and oily food.
Health Tips
For any query you can consult online. Thank you