Have you tried putting aquaphor up there? It helped me immensely. I should mention though, it does create a smell after its been in there for a few hours. Clean it out with a kleenex and reapply.

What's your current dosage of Accutane? If it's a pretty high dosage, you could ask your dermatologist to lower it, and that would probably help a lot with that issue (if you're willing to of course). 

Lowering the dose won't effect the final outcome of taking Accutane, it'll just take a little longer in order to get there/reach your cumulative dose. 

If you aren't willing to lower your dose, doing what Fudgesicle said to do is also a pretty good approach to stopping this issue. Odd, but it works  .