Originally Posted by aprilnichole
as you may or may not know pimples do not develop that fast, they are forming for WEEKS before they surface, so it's impossible for you to put on makeup and 6 hours have a brand new zit solely because of that makeup. If however you have been continually using that makeup for weeks and weeks then yes it could have caused your pores to clog. do a search on this board for makeup suggestions that won't break you out.
Your statement is not entirely true. If you are allergic to an ingredient in the foundation then you can develop a breakout in a short period of term after application. People need to remember that acne (or what looks like acne) is not just caused by oil, bacteria, hormones, or the improper shedding of skin cells. Acne can also develop as a result of food allergies, allergies to ingredients found in cosmetics or skin care products, etc.