Blackhead and Furuncle

Blackhead noun - A black-tipped plug clogging a pore of the skin.

Furuncle and blackhead are semantically related in blemish topic. In some cases you can use "Furuncle" instead a noun "Blackhead", when it comes to topics like small swelling on the skin.

Furuncle noun - A painful sore with a hard core filled with pus.

Blackhead and furuncle are semantically related in blemish topic. You can use "Blackhead" instead a noun "Furuncle", if it concerns topics such as small swelling on the skin.