Blackheads are black bumps that are impacted pores in which material pushes out through the follicles. The black color is not necessarily from dirt...

What is mucus? Mucus is a mixture of antibodies and white immune cells. It is essential for body function and acts as a protective layer to trap du...

COVID-19 is an infectious disease caused by a newly discovered strain of coronavirus, a type of virus known to cause respiratory infections in huma...