I am fully focussed on my treatment at the moment. I have stubborn melasma that didn't lift with dermalen mask. Now, my derm is putting me on hydroquinone 10% for 2 months. First, any chance this stubborn pigmentation can resolve with hydroquinone 10% + retin A 0.5%? WHat if it's dermal/deep? Derm says maintenance using dermalen cream 2-3 times a week and hydroquinone only if I notice any dark spots. I don't feel hopeful that results can be maintained like this? Please advise from your experience.Thanks