What is ""φουσκάλα"" in American English and how to say it?

Greek

φουσκάλα

φουσκάλα-blister.svg
American English

blister

Learn the word in this minigame:

Example sentences

American EnglishI slept badly and woke up with a stiff neck.

How ""φουσκάλα"" is said across the globe.