Can being exposed to sewer being broken have anything to sinus infection lastimg weeks even if i took 2 rounds of z pack? have had infection 3 mths.

Sinus infection: Well, i guess it depends on what you mean by "exposed" to a sewer. Just the smell is unlikely to cause a sinus infection. But if you somehow got sewer sludge on your hands and then infected yourself accidentally, it could be an unusual infection not sensitive to the usual antibiotics. I think you need to see an ENT doc for a better evaluation. Sometimes surgical drainage is necessary.

No: If Azithromycin has twice failed, it is likely the wrong antibiotic since it is convenient but not first line treatment for acute sinusitis. Penicillins, cephalosporins and fluoroquinolines are much more effective for sinusitis. Speak with or see your provider and make sure you have an infection rather than allergies or another cause for symptoms. If infected, suggest a change in antibiotics.