Blackheads are tiny, dark spots caused by a small plug in the opening of a follicle on the skin. The substance found in these bumps mostly consists of keratin and modified sebum. As it oxidizes or exposed to the air, the reaction of which with the oil causes the trademark black color. It is important that you avoid squeezing the lesions since this will leave a permanent scar on skin and infection may also occur. Try to wash your face daily It would also help if you have this evaluated by your dermatologist for proper management.
Take care and regards