Pimple

A pimple was a small deformity found on a Humanoid's skin and was a result of blockage of a pore.

The Klingon equivalent of a pimple was the gorch. 

In 2366, Q contemplated, after being transformed into a Human by the Q Continuum as punishment, on the possiblility of having a pimple. 

Lwaxana Troi once said that making young boys reasonable often gave them pimples. 

The Doctor, shortly after his activation, complained in 2371 to Kes in sickbay that every "runny nose, stubbed toe, pimple on a cheek" was his responsibility.