I have acne again.

Around Friday, I thought I was getting acne on my chin.

However, since it wasn't showing up, I thought, "Surely not," so I bought some early-stage acne ointment from a pharmacy and applied it.

But yesterday, I accidentally touched it with my fingernail while washing my face, and it hurt so much.

When I looked in the mirror, the acne had flared up to the point where it looked white. It is too big to squeeze with my hands, and it seems to be in a recurring spot. If I go to a dermatologist, will they treat it just for one pimple?