I have changed everything i use that can contact my skin - my shower gel, my creams, even washing powders. The stuff I use now has no SLS's and other nasties in it, the soap is all natural, i even use soap nuts to do my laundry. I have also been using an aloe vera and proposlis cream recommended by a friend. The P cleared up in a month!
I don't think it's necessarily about putting more on, more about using less on your skin. Think about your cleaning products and even your household cleaning products (they still come in contact with your skin). I dont want to put details on the forum about what i actualy used, but get in touch if you like.
Lois