Nooo don't pop them - leave them alone and they will eventually go by themselves with no scarring. DD1 had them quite badly and the Dr said they can last from 6m to 2y. She had them for about 18m and caught them from her bestie who also had them for about 2y until they went by themselves. The body's immune system eventually works out that they need to attack, they will go red and angry for a few weeks and then one day they will just disappear like magic.

FWIW DD2 never caught them from her.