Is it a pimple or a boil?
Last reviewed Wed 21 March 2018
By Rachel Nall, RN, BSN, CCRN   
Reviewed by Debra Rose Wilson, PhD, MSN, RN, IBCLC, AHN-BC, CHT   
Pimples and boils are troublesome skin problems that can sometimes cause similar symptoms.
Pores are tiny openings in the skin that allow oil to seep out and keep the skin soft. A pimple is a result of a pore becoming clogged.
A boil, or furuncle, is a pus-filled lump caused by bacterial infection. It can appear red and swollen.
While a person can treat both boils and pimples at home, boils can sometimes turn into a severe infection known as a carbuncle.
https://www.medicalnewstoday.com/articles/321270.php