I am concerned about Steven Johnson Syndrome in an infant. He had a fever of 103 last week. took him to the clinic they diagnosed an ear infection gave him an antibiotic he immediately broke out in Hives. Stopped that and they put him on another Sulfa drug now he gets a red rash with blisters that goes away in a couple hours but comes back and it leave purple dots as it goes away. Am I panicking. He is now off all medications but the rash keeps coming back