acne
"I was on minocycline for about 3 years for acne. It controlled the acne great. Then one day out of the blue various joints were extremely swollen; maybe two of my knuckles, one of my toes, and my knees. I could hardly walk it hurt so bad. The next day that swelling would be gone but other joints would be swollen and stiff. I tried the process of elimination, cutting certain foods out of my diet, various vitamins. I went to the doctor and they were baffled. I finally stopped taking the minocycline. In 24 hours swelling went down. 2 weeks later I took one pill, within an hour my joints swelled. I'd developed an allergy to it."