I have a mole on my face that often gets a pimple in it - my dermatologist says this is normal with moles (it is a skin colour mole, just slightly raised). I wanted to taken out, but he says he will make a lot more of a scar that way. Apparently until you are 30 it is normal to develop new moles. Get your dermatologist to check it out, or see if there are special mole scanning clinics near you (in Melb there is one on the cnr of Chapel St & Dandenong Rd, Windsor/Prahran). DH goes there, and they use a computer to check & compare moles over time.