windburn vs erythema

windburn and erythema both are nouns.

Word	Noun	Adjective	Verb	Adverb
windburn	Yes	No	No	No
erythema	Yes	No	No	No

As nouns, erythema is a hypernym of windburn; that is, erythema is a word with a broader meaning than windburn:

windburn: redness and irritation of the skin caused by exposure to high-velocity wind
erythema: abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation)

windburn (noun)	erythema (noun)
redness and irritation of the skin caused by exposure to high-velocity wind	abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation)