My wife's cardiologist told her that long term use of minocycline or any of the antibiotics of the cycline family will burn the valves in your legs that control the flow of blood back and forth. Instead of a one way street for your blood to flow down from your artery in your leg and back up through your veins it now becomes a two way street because your valve isn't working. The problem is she has to keep taking it for chronic Lyme disease.
Hello,
From the symptoms it can be acne or acne keloidalis nuchae. Treatment includes suppression of the inflammation with antibiotics and steroid gels or intralesional steroid injections. So apply antibiotic cream like Neosporin or Bactroban. If the symptoms persist then oral antibiotics and steroids may be needed. So continue using the Minocycline and if the symptoms persist then steroids may have to be added.Please consult a dermatologist in that case.
I hope it helps. Take care and regards.