I too am really afraid of putting commercial masks on my face for fear that it will disrupt the ph of my skin or cause a burning stinging reaction on my sensitive skin.

I do a raw honey mask sometimes. Honey is antiseptic and kills the bacteria that causes acne. It also leaves my skin pretty soft and moisturized. I know manuka honey is even better if you can get it, because its made from the tea tree. If you want to exfoliate a bit you can add raw sugar. I sometimes also add a drop of jojoba or argan oil to make it extra moisturizing.