Tonsils are a normal anatomical structure,found in all humans,even adults!! Children from 3-8 years of age get infected in nose and throat,including the tonsils,which are a part of the throat,and this can occur 5-7 times a year,it's normal. Azitus is to be used for 3 days,and if the child has recovered,stop. If not fully recovered,consult your paediatrician again.