I have the rash after taking only 6 pills or six days. The rash has spread over the upper torso and scalp. I am 31 and this is what I got 5 days after strep. After the dry skin appears it starts to itch. Then you scratch and we will see if it goes away. I am 14 days now with the rash. Infrequent on legs and lower torso. Mainly back, scalp and chest.