How do I know if my sinusitus is clearing up?

Your symptoms clear. The measure of whether your sinusitis symptoms are clearing up will be the improvement of the symptoms that led to the diagnosis of sinusitis in the first place. Sinusitis symptoms include head ache, fever, cough, post nasal drip, sore throat, facial pain, reduced sense of smell and taste, nasal obstruction, halitosis or bad breath among others.