hi, i m 24yrs 10months old, i get pimples on my face, which if i touch turns into a big 1 with puss formation in it, n if i leave it unattended then almost its taking 1 week to 15 days to dry then, its becoming normal like skin but a dark reddish black mark is being left, y so??? its almost 3 months now n i got4 such marks on face, only 1 pimple occurs r rarely 2, plz let me know y is it happening or how can i get them out???? is it bcoz, i m not married though i m almost 25???