how to remove an unwanted texture

I accidently applided a clothing texture to a body part. It wasn't visible in th editor so I didn't take notice of it. I tend went ahead creating an entire scene and it appeared in the rendeing. Instead of skin tone, an arm looks like clothing material from a shirt of dress. Is there a simple way to restore the arm to it's original skin tone?
Comments
Reapply the original character's materials preset, if you know which that was.