Eat small frequent meals atleast every 2.5 to 3 hrs.Increase intake of fruits and vegetables atleast 3 fruits and 5 vegetables a day.Drink 8-10 glasses of water.Sleep atleast 8hrs in the night.Include fiber rich foods and avoid processed products.Reduce carbs abd increase protein intake.Exercise for atleast 1hr in a day.

Hello,those who are asthmatic usually takes inhaler which contains steroids like beclamethasone ,steroids might be reason for weight gain .You need fresh environment out of city , do breathing exercises so that usage of inhaler should be reduced , have more of fruits and vegetables, drink lot of water , avoid junk ,oily food items ,have food like chapatis, avoid curd ,ghee, ice creams , meat .Exercise daily in morning , sleep well ,avoid worries.