I, for the past ten years or so have suffered from a pimple like rash after taking antibiotics. It does not seem to matter what antibiotic it is. The only time that it itches is if I get a cluster of them close together. I have had several doctors....ER, GP, and dermatologist look at them and I get a different answer every time. Sometimes these go away on their own, but sometimes they don t and I seek medical help. Through the years I have found that just a simple steroid injection will help it to go away. I have been told it was because I got sunburned so I am careful to avoid sun when on antibiotics. I was once told that it was an allergic reaction, but they do not respond to benydryl. I have also been told that it is just my body trying to rebalance the natural bacteria in my skin.They start as little red bumps on the surface....not deep in the skin, and eventually develop small white heads. It really does seem like a bad case of acne, but I find it unusual that EVERY time I take antibiotics this happens. It generally occurs a week or so after finishing the prescribed dose. It is not terribly painful, but it really looks awful to have it all over. I am very frustrated and would like to know what it is and if it can be prevented. Bit of medical history..I have fibromyalgia, IBS, SVT, PCOS, and uticaria or pressure sensitivity. I was greatly overweight for a while and was on Medicines for all of the above as well as HBP and depression. I have since lost over a hundred pounds and am no longer on any of these medications. I was recently treated for a kidney infection and now have a mild version of the above rash. I am not sure if this is enough info or not, but ask me anything. Thank you