“Accutane- sunburn- little blisters”

Went to a new dermatologist after trying everything for my stubborn mild acne. The dermatologist I saw suggested Accutane because she saw scarring.

I've been on Accutane for about 3 months. Unfortunately, I got badly sunburned last week while playing golf. To make matters worse, I went running this morning in pants. Now my legs have many small blisters or little air pockets! What should I do? Have I caused permanent damage?