How can I strengthen the immune system of my 5-year-old son. He frequently catches colds and coughs, and the symptoms last for more than a month

A. Start giving milk twice in a day with a pinch of turmeric black pepper and 1 teaspoon of dry fruit powder each time or if your child is able to digest and two teaspoons of dry fruit powder that’s a very good home remedy which will help in boosting the immunity and avoid giving junk and sugary foods and outside food