I took bactrim for an ear infection and on 11th day developed a skin rash all over. how long does it last?

HELP! My doctor perscribed me Bactrim (sulfamethoxazole) for a whole month %26amp; Cipro drops for a continuing ear infection. I was on the medication for 10 days ( 2 tablets a day for 10 days and the rest 1) and on the 11th day (morning) my lower back (kidney region) started to feel sore. That afternoon I developed small red rashes around my elbows ( i sometimes get hives or have sensitive skin and assumed it would go away) . however throughout the day red spots developed on my legs. The next morning and afternoon some of them grew and there were other red rashes and bumps all over my legs and arms and some on my torso. I went to my doctor that afternoon (12th day) she told me to stop with my medication. She gave me a shot and then perscribed methopredinisolone.The red/pink rashes/bumps are all over the place and some look like popped capillaries. These don't itch. But I was wondering how long does this rash last for? And does it or will it scar my body? Any advice would be great.|||Anytime you are taking a medication, especially an antibiotic, stop taking it and call your doctor AT ONCE if you have hives, a rash, swelling of the face, difficulty breathing or any other allergic symptom. It's probably the Bactrim, but people do become allergic to Cipro, so you should not take either one again unless a doctor desensitizes you. Taking whatever you are allergic to again could produce a much worse reaction, even death. You should wear a medic alert bracelet as well.





An allergic rash should not leave scars unless you get an area of it infected by scratching. You may see some skin peeling like from a bad sunburn from a severe allergic rash, but normally nothing permanent. Signs of the rash can last for many weeks, but eventually they should go away entirely. If anything starts looking worse, be certain to tell your doctor.





Bactrim contains the sulfa drug you mentioned, sulfamethoxazole, and another drug, trimethoprim. If you do not drink enough liquids when taking a sulfa drug, crystals can form which may irritate or damage the kidneys. That could explain the back pain, but ask your doctor about this.





Bactrim allergies are very common. My entire family is allergic to sulfa drugs and one of my children had a life-threatening Stevens-Johnson Syndrome reaction to it after taking it safely for many years.





Just remember that you don't "outgrow" allergies and another reaction is always possible and may be much worse.|||Go to the doctor! You may be having an allergic reaction to the medication. Or who knows?! Just call your doctor ASAP!|||It should not take too long or cause scaring....but this depends on how hard did you scratch? If you scratched in a crazy state of itching and broke open the skin and made the skin bleed and did all sorts of skin damage, then it would be like you skinned your knee and that damage, as you probably remember, took about 2 weeks if you do not pick the scabs too much. Scarring would be caused if this raw tissue becomes infected. So if you have raw tissue, keep it very clean with soap and water, maybe put some bacitracin on it and cover with bandaides or clean dressings that you buy in a drug store. Keep your dirty fingers off it and there should be no scars. If you did not ever break the skin, all should be well in a couple of days. Your can always call your doctor's nurse for advice if you stay worried. Ice causes the skin to itch a lot less. Rub the itch with an ice cube...no more than 15-20 minutes. If you bled under the skin it is a bruise and the colors will go like any other bruise..slowly and changing colors as each part of the blood is reabsorbed....probably not longer that 2 weeks...no scaring.