Levocetirizine is used to relieve the symptoms of hay fever and hives of the skin. It is an antihistamine that works by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes.

Cetirizine is used to temporarily relieve the symptoms of hay fever (allergy to pollen, dust, or other substances in the air) and allergy to other substances (such as dust mites, animal dander, cockroaches, and molds). These symptoms include sneezing; runny nose; itchy, red, watery eyes; and itchy nose or throat

Azithromycin is an antibiotic medicine. It's used to treat infections including: chest infections such as pneumonia. ear, nose and throat and nose infections such as sinus infection (sinusitis) skin infections. Azithromycin is also used to treat sexually transmitted diseases