Hi,being in a bathroom,it’s gloss. Maybe even oil base.You can sand, or do it my way,which is spay a little Easy-Off Oven Cleaner on it. Don’t leave it on but five minuites, as it removes paint fairley fast. Use only the blue can. Then rince and redo your touch-up using a smooth roller for smooth walls,and a fluffy one for rough or textured walls. When your done with the roller, feather the edges with a brush, to blend in. Bye