Let me join the fun here.... Im a doctor yes not a dermatologist.... Im a Surgeon... But yes we do study dermatology as a major in undergrad surgery....

I can recommend some goo dermtologists in Doha...

About black heads thee remedies mentioned above will help... But please re check if its a black head or a pigmented neuvus... It can also be a large rapidly growing black mole which should immediately be shown to a dermatologist...

Take it from me everyone... in any hot country like the middle east and parts of australia... skin cancers are very high... if you find any sudden eruptions of a black mole which continues to increase in size suddenly and starts to hurt... met your doctor asap... ont waste time on beauty creams...

For further info fix up an appointmeent with me lets discuss....

As long as you are trying hard, you are never failing....
The only failure is failing to try harder.....