What Is The Recurrent Cough And Cold In Spite Taking Medication For Asthma?

My daughter is suffering from asthama for last 8yrs...from the age of 2. She has been asked to use Budecort 100 mg 2puffs twice in a day. She is been given this medicine for last 8 yrs. Obviously she is using Asthaline inhalor too at quite high frequency. What are the side effects of these medicines.. I am very much worried. She is continously having cold, cough and catches infection frequently..