horse chestnut balm vs horse balsam

horse chestnut balm and horse balsam both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse chestnut balm	Yes	No	No	No
horse balsam	Yes	No	No	No

As nouns, horse chestnut balm and horse balsam are synonyms defined as:

horse chestnut balm and horse balsam: an ointment containing horse chestnut extract, used to relieve muscle pain and joint pain.

Other synonyms of horse chestnut balm include horse chestnut cream.

horse chestnut balm (noun)	horse balsam (noun)
an ointment containing horse chestnut extract, used to relieve muscle pain and joint pain.	an ointment containing horse chestnut extract, used to relieve muscle pain and joint pain.