You sound like your on it . a I ' d stop using BHA or any other actives until you know how tour skin will respond to the Tazorac . b I would apply aczone azeliac acid right ? away from Tazorac . However give your skin a chance to adjust to the Tazorac then see how you feel . c I don ' t know if a serum that may be water based might increase the irritation from the retinoid . Ask your prescribing doctor . d see abovee if the Vit C is LAA , then it goes on bare skin . If MAP or SAP it can go on when you want . As for your eyecream , if you like it go for it , it is your face ! I don ' t like having more steps than is essential for me , I have never found an eyecream that hasn ' t been equalled by just using my serum moisturiser . So I don ' t use it , shrugs . Break a leg in your Nutcracker performances !