sinusitis
"My doctor prescribed this drug a year ago because of a nasty sinus infection. After 4 days of 500 mg/1 time day, I developed joint pain everywhere - knees, elbows, ankles, wrists, could hardly walk up and down stairs. I stopped taking the medication, but continued to notice weakness in my ankles. Four months later I developed debilitating PTTD, which is a failure of the tendon that holds your foot correctly. I am now in an expensive and uncomfortable ankle brace and facing surgery. I wish I'd never taken this drug."