Sun rash ?

Alright so I developed this during my last month on Accutane and I’ve been off of the medication for about a month now and it’s just not going down at all... I really think it’s a sun rash that developed as a side effect of the medication but I’m also not totally sure. Any input as to what it is? How should I go about easing the pain/redness because it’s also super embarrassing 🙁