Need a little advice

I have been dealing with plaque psoriasis for about 5 years. It has gone from mild to severe. I have tried all otc lotions, potions and elixirs. I finally stopped stalling and made an appointment with a dermatologist. I'd like to get on otezla. I do have cancer, so I do not want to go on any immunosuppresents. What are some good things to bring up that are often forgotten? I guess I am just nervous to actually medically recognize I do have it. What are some of the treatments prescribed for you, and how well did they work? Did you continue to use otc lotions and everything even when taking oral medications? Any help or advice would be greatly appreciated