Sinus infection. Often mistaken for a cold.
D000208:Acute Disease; D002908:Chronic Disease; D003139:Common Cold / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D014663:Nasal Decongestants / Q000627:therapeutic use; D012852:Sinusitis / Q000175:diagnosis / Q000209:etiology / Q000628:therapy
D014663:Nasal Decongestants