Hey, unfortunately their is no magic powder available in the market how the advertisement shows on television. Balanced diet n healthy lifestyle is all he needs. Try giving seacod capsules as it is rich in omegas and it works for few.

Contrary to common belief,NO food,meds or supplement can really boost up the immunity,it's a natural,gradual process due to repeated,minor infections. Children up-to the age of 8 years WILL fall sick every 2-3 months. If mild,avoid unnecessary medicine and just give steam inhalations for cold and cough and decongestant nasal drops for nasal block or increased cough on lying down. Use paracetamol for fever if required.