White pimple on right nipple.

I am a 43 yrs old male. A few weeks ago having sex with my partner I realised that he had hurt my nipple. I did not think much about it then. This week I felt discomfort and pain when I touched that nipple or something rubbed against it. Today I did notice like a very small white pimple exactly in the middle of the nipple. I squeezed it & white stuff like a normal pimple came out followed by very little blood. I still see the white spot/pimple.Should I worry about this, or leave it to heal by itself?

Thanks.

[Fernando Roque, MD]

Hi.  The injury to your nipple probably developed some infection.  This is the reason why it has become painful and tender, and why a whitish discharge can now be seen oozing out of it.  Topical antibiotics like mupirocin can help resolve the infection and hasten healing.