Cough and cold. Prescribed alcon drops.

Hello doctor My 1.4 age boy baby had severe fever 102 degree 7 days before. I gave p250 3ml and fever reduced.  I was suffering with throat infection pain and cold before a week he was getting sick.  doctor told he has mild tonsillitis and got infected from me and he may develop cold and cough after fever and as a precaution he prescribed Alcon drops .5ml & spectratil 100 3mg 3ml day and night. i gave him for 2 days... but still he got mild cold and cough. I stopped the medication. he is still sufferring with mild cold and cough.he is coughing more than 15 times in a single time in the morning and after it is getting reduced but coughing  nt much. he  is active and sleeping in night without disturbance. Today his breathing little faster... Other doctor told he has mild wheezing... please advice is it normal or does he need medication or the cough will reduce by days what is normal cough and when cough needs medication Thanks a lot in advance.. Please help..