Roaccutane caused a side effect?

Hello, first of all, I am 2 months of the roaccutane drug, I use 30 mg for the first month, and now I use 40 mg, there is only dryness on my lips and a very little peeling on the sides of my nose, but the red itchy spots on my whole body that scares me, I talked to my doctor, which looks like a stain, he gave the alocort m drug for 2 weeks to relieve the itching. Like what should I do? I put my blood enzymes. Thank you very much.