If you have ultimately got rid of pimples on your skin, you can find a lot of dark spots on your face. Thus spots is another big enemy of your skin, and thus you should be careful from that, by applying proper medications to get read of them.
When the pimples leave your skin, you can find a lot of small dark spots that leave the evidence that you once suffered from pimples. Actually the pimples have a lot of products in them, which are the excretion of your skin. When it comes out along with blood, a small dot of wound remains there.
If you want to get rid of those dots permanently, you should be very active from the very beginning. From time to time you should apply antiseptic lotions, which keeps away such kind of problems. You should apply it regularly, and it will eventually fade the dark spots away from your skin.