The Collaborative International Dictionary
Chin whelk
Whelk \Whelk\, n. [OE. whelke, dim. of whele. See Wheal a pustule.]
A papule; a pustule; acne. ``His whelks white.''
--Chaucer.-
A stripe or mark; a ridge; a wale.
Chin whelk (Med.), sycosis.
Rosy whelk (Med.), grog blossom.
Wiktionary
chin whelk
n. (context obsolete English) sycosis