You can easily check out the side effects of adderall. But, I have been doing this site for about 10 years and that has never come up as a side effect. However, it is something that is definitely worth checking out. Quality of life is important! Perhaps start with a dermatologist?
How long were you using the adderall before the acne started? During this time period, have you had any other changes in diet, lifestyle, stress?
Of course, you can always stop the adderall for awhile and see what happens. But, whatever happens, I hope you find a solution and I would be very interested to know what that is ....as others might have the same question. Sorry I can't be more helpful, except to say that I would be very surprised if it was the adderall. Best wishes.