I've got a skin condition so I can't use any chemicals (face wash, make up etc) on my face and have to use an aqueous cream to wash. This leaves a sort of layer on my skin after I've used it (which I do twice a day) it's leaving a build up causing me to get blackheads. I only noticed this the other day and I have so many! Almost every pore on my nose has them! 
As can't use any chemical washes or peels, does any have an tried and tested home remedies to get rid of them??
Thanks 