My Maltese just ate some crushed red peppers (from pizza) what can I do?

She'll be fine; maybe some loose bowels. As a Maltese owner myself, I have learned that the little varments are geniuses at stealing most anything and food in particular. Mine has managed to get up on a table and steal a bag of Pita chips, has dragged my jeans off the hamper and gone through my pockets looking for treats and tried to pickpocket things from my friend's purse. Apparently this is typical Maltese behavior. They have an instinct for "Seek and ye shall find!"