first off all i would suggest you to carry out chest x-ray and complete blood count to rule out lung infection like bronchitis. foracort is a combination of budesonide a corticosteroid and anti-inflammatory and formoterol a long-acting bronchodilator used to control his symptoms and improve lung function. this drug will not affect his immunity. it is most probably only due to allergy that is triggering his symptoms. common allergens could be dust pollution in metro hairs of house pets cold etc. yes you are right as your son will grow his body will tolerate better. the best supplements to boost your child’s immune system are vitamin d and zinc. the herbs elderberry (sambucus) and astragalus are best for recurrent respiratory tract infections. for allergies fish oil vitamin c and nettles are good. revert back after the tests to an internal medicine physician online --> <link>
why is my son having continuous chest congestion?