(A dog then appears and the ender king poofs way)

Gaster: rouxls! What are you doing! Hide

MT gaster: (poofs normal and gaster hides under a bed)

gaster: .v.
pre-corrupt mt gaster: .v.
(they both spin)

Then ye, probably

Most likely there’s something in it that your skin finds to be an irritant
That happened to me too before
It’s what I get for getting it from mf Rite-AID