my 4 year old boy suffers cold and cough so frequently like every 15-20 days..... is he allergic to anything or having any other problem

A. Hey! Poor immunity, seasonal changes, allergic reactions to certain weather, conditions, or surroundings or foods can trigger frequent discomfort in the child. Better to check with your consulting paediatrician once in this matter. Use Babyhug rapid relief cold rub in such situations