jungle rot vs skin disease

jungle rot and skin disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
jungle rot	Yes	No	No	No
skin disease	Yes	No	No	No

As nouns, skin disease is a hypernym of jungle rot; that is, skin disease is a word with a broader meaning than jungle rot:

Other hypernyms of jungle rot include disease of the skin, skin disorder.

jungle rot (noun)	skin disease (noun)
skin disorder induced by a tropical climate	a disease affecting the skin