Yes, OINTMENTS is a Scrabble word!

Letter values in Scrabble US: O 1, I 1, N 1, T 1, M 3, E 1, N 1, T 1, S 1.

Is it a valid word?

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

semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation
toiletry consisting of any of various substances in the form of a thick liquid that have a soothing and moisturizing effect when applied to the skin