Hi,
If you are an adult 500mg of
Azithromycin. If it is a mild
sinusitis I think you can go ahead but if it is severe better go for Amoxycillin-
clavulanic acid combination. Also, you can take mucolytics,
saline nasal drops and anti-inflammatory drugs if you have headache. But the best treatment is steam inhalation and drinking plenty of warm water.
Any more doubts you are welcome.
Regards
Dr. Naveen Kumar