Thanks for posting your query.
Presence of cough
since 2 months with normal chest x ray
and wheeze may due to Asthma
Do you have some sort of allergy?
may be due to antibiotics and phlegm production (common during asthmatic attacks).
You should consult with internal medicine specialist and should get thorough check up.
You should take complete antibiotic course along with broncodilators and mucolytics.
You should avoid cold drinks and oily foods.
Dr. Mayank Bhargava