If I were you, I would be freaking out because your wife is taking winstrol - it is a no-no steroid for a lady, as it is one of the most androgenic ones. She should stop using it ASAP, because it can give her virilization issues, which are more serious than acne.
As per your question, acne, is acne - both natural and AAS induced acne are caused by the same issues. The difference is that pubertal acne takes place because of natural hormonal swings, and here you cause them artificially with the use of AAS. So the acne will be just the same. However, there are some things she can do to paliate the issues cause by acne:
1. Sun tanning is a very effective means of reducing acne and drying out the skin.
2. Use anti-acne lotions at least once per day. Go to your doctor and ask him to prescribe you a topical acne cream. It'll work better then anything available over the counter and your insurance will cover it.
3. Make sure you are showering 3 times per day: upon waking, after workouts and before bed.
4. Zinc containing creams are very effective and available over the counter. Apply them to your trouble areas.
5. Black ointment is extremely effective. It stinks pretty badly, but I am pretty sure you can deal with it for a couple of hours in order to get rid of acne.
6. Shaving foam is very effective in drying out the skin, and it is very easy to get in any shop. Apply it on the troubled area for 15-20 minutes, and wash it off.
She can also use coconut oil to repair the skin - it is very effective and cheap.