Any good drug store (walgreens preferably), acne scar creams or gels that you recommend? nothing too expensive. i'm on accutane as well

Prevention: The use of sunscreen at this point is huge for scar prevention. Sun on a fresh scar can cause hyperpigmentation and solar damage. Any fresh or hypertrophic scars can be treated with Mederma to improve their outcome.

Biocorneum: I prefer a product called biocorneum which has both silicone and sunscreen. It improves the scar appearance and prevents hyperpigmentation as well.

Acne scar: There are no over the counter products that will truly help with acne scars. Typically, these types of scars require aggressive treatment with laser or surgery, to help reduce their visibility....Not eliminate.

Acne: Unfortunately none for scars already formed. There are some patches to prevent scar hyperttophy but usually recommended for people with keloid tendency.

Wait: You should generally finish your Accutane treatment before you try to treat the acne scars. Acne scars are very hard to get rid of. There are over the counter products that can help slightly with dark spots, but I would not expect a major improvement. Indented scars will not respond to anything sold over the counter.