Could toothpaste make pimples dissapear?

Not really: Toothpaste is formulated to clean teeth. Many poster on this forum are asking for help in clearing up rashes caused by using toothpaste on their skin. Use a product designed for pimple eradication.

May irritate skin: Most toothpastes contain a menthol ingredient that gives us that familiar minty sensation of clean teeth. Unfortunately, menthol is an ingredient that often irritates skin and causes itching and inflammation. Many studies going back to the 1970s show that some people exhibit mild topical allergies to fluoride. The physicians' desk reference states that Fluoride may actually cause skin eruptions.

It could not: It actually contains substances that are very harmful to your skin, use skin care products for that..