This is due to upper and lower respiratory tract
infection if you are not feeling good with Azithromycin
go for more potent Antibiotic such as Tab. Avelox
400 mg once daily for 05 days with an oral decongestant such as Loratidine
twice a day for 07 days and an antitussive agent for cough such as Acefyl cough 02 TSF thrice a day for 07 days.
Avoid yogurt and other cold thing have gurgles with salt water.
I hope I am sucessful in solving your query If you have more you can ask me.
Dr. Azhar Sattar