Yes, WHEALS is a Scrabble word!

Letter values in Scrabble US: W 4, H 4, E 1, A 1, L 1, S 1.

Is it a valid word?

WHEALS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a raised mark on the skin (as produced by the blow of a whip); characteristic of many allergic reactions