Thanks for query. Seroflo contains salmeterol and fluticasone. Salmeterol is a long acting bronchodilator
which will help to reduce bronchoconstriction
.Although it's efficacy below 5 years is controversial. Salmeterol on long term intake may lead to tremor, tachycardia, hypokalemia
although chance of occurence of the side effects are uncommon. Fluticasone may lead to oral candidiasis
, hoarseness of voice, reduced peak growth velocity on long term intake. The children who are put on inhaled corticosteroid has reduced peak growth velocity but attains the normal height at later age.Please wash his mouth after each bout of inhalation. Inhalational steroids are the antiinflammatory agents used for treatment of asthma which are much less toxic than oral steroids.No treatment of asthma is complete without steroids. It's more important to keep asthma under control rather than to worry about the side effects. You may consult a pulmonologist
regarding further advise. Hope, I satisfied your queries.