Hello dear , hi
Welcome to Healthcaremagic.com
I have evaluated your query thoroughly .
* There are different reasons for this condition as -
anxiety - stress
- low
hemoglobin - nasal polyp - allergic
bronchitis - others .
* Needs proper evaluation with basic lab tests , x-ray chest to figure out
the root cause and management guidelines in accordance to that .
* At present guidelines
- allow him with plenty of liquids .
- balanced nutritious diet .
- gargles with salted lukewarm water added peppermint oil 3 times
a day .
- inhalation of vapors of boiled water added tincture benzoin solution .
- avoid
cold drinks , spices .
- deep breathing exercises , regular walking in fresh air ,
YOGA .
Hope this will help him for sure .
Wishing your son speedy recovery .
Regards .