How to get rid of under the skin pimple/ bumps?

I use proactive but after awhile I would still get pimples on my forehead. They are not red and I have tried to pop them and nothing happens. I don%26#039;t think they are the kind where if I put a warm washcloth on them, the head will appear. I have tried many things, but nothing seems to work... does anyone know how to get rid of these annoying things?|||Go to a dermatologist|||Take some sulfur, mix it with aloe vera and some lavender and tea tree oil, add this to some bentonite clay and place this mixture on your pimple and let it dry,then rinse off. Put it on overnight.