At me three weeks there does not pass a cold. Heard, he can outgrow in a sinusitis. What it for disease?
Such long cold already says that at you, most likely, a sinusitis (an inflammation of additional bosoms of a nose). As a rule, the usual not complicated rhinitis passes for 5 — 7 days. If process is tightened, it is a sign of joining of a bacterial infection against decrease both local, and the general immunity or allergy development. The most reasonable decision in your case — to address to the doctor. It will appoint special treatment.