If you are suffering from asthma your diet should be mainly vegetarian with minimum fats and carbohydrates. Avoid sweets at night. Eat dinner at least two hours before sleeping, so that the food is well digested when you snooze.Increase your intake of green leafy vegetables, pulses and legumes. Have magnesium-rich foods like papaya, which help build immunity against asthma.

Reduce intake of processed foods, especially those that contain soy or corn oil, which exacerbate inflammation.

Have a glass of of lukewarm water before you sleep.