Hi, my daughter is 16 and saw a dermatologist to treat cystic acne. They prescribed minocycline 100mg every 12 hours. A couple of weeks in she was taken to the ER with her first migraine.. I told them about her being on the meds, but they said that side effect has never came up with them. This is really long story, but anyway a chiropractor got her headache to go away after several adjustments. NOW, her eyes have struggled with double vision and blurriness. It has been 10 days. She has to go around covering one eye all day to keep herself going. Online tonight I read about the effects of taking Minocycline and blurred or double vision, eye pain, nausea, vomiting, and severe headache are all symptoms she has had. She took the med for about 12 days then stopped because of the headache. Returned home and began taking it again for a few days, then her eyes began being crossed.. She stopped taking it and she has now seen a chiropractor several times, her optometrist, and a message therapist. So far nothing has helped her vision.. I am very concerned about her. We see the chiro in the morning and the opt on April 2. What do you think?