I had a severe reaction to something July 16th. Not sure what had been on amoxicillin for almost a week. Had a pedicure that day. Have read that you can get hives from that if equipment has not been cleaned well. This is the first time I have had an allergic reaction. Went to the dr 17th. He assumed amoxicillin reaction no blood done put me on prednisone and antihistamine. Monday I called my doctor. Hadvswelling and aching in joint lymph nodes swollen. They got back to me tues And I had an appt Wednesday. Tested me for Lyme disease which came up negative. Sed rate was 53. That Wednesday before I went in I could not even raise my. Right arm to do my work, lot of pain in my joints. Was in for my annual physical fri, August 7. Sed rate is still 40. Double of high normal. Finished all my initial medication. Still having some skin reactions itching, so am taking Benadryl but that makes me tired.