Hello I had a sinus infection few weeks ago Went to primary Dr. They gave me Amoxicillin. 5 days after taking it started to get a real bad rash, very itchy and it s all over my stomach. Beat red and purple. Went back to primary, thought it was from antibiotics so I stopped immediately. Told to take benedryl. 7 days later back to primary, definitely not from antibiotics, rash is spreading in silver dollar round patches and very red. Doesn t look like shingles and wants me to see Dermatologist. Dr said urgent see asap. Called today, can t see me till next Monday. I do have chills but no fever. I do have SLE Lupus and RA My daughter is having her baby tomorrow, is this rash dangerous to a newborn?