Minocycline
"Prescribed for acne, 50mg capsule once daily. Had a few blemishes I couldn't get rid of and it helped clear up a few. Experienced  dizziness when first taking it then a couple days later developed small, red bumps on shoulders, it stayed that way and I really didn't see anything to worry about until the 6th day when I had a terrible swarm of symptoms occur that indicated a strong allergic reaction. I really didn't feel right when I first started taking it but no major symptoms to worry about, little did I know my body was having an allergic reaction for 6 days straight and then it became severe. I called my doctors office to let them know about the rash and they didn't contact me back in time to inform me that it was the start of an allergy"