Blemish

A sense of not being good enough, or a fault in how you feel about your public image. See: Skin; stain.

This can indicate a fault, an imperfection, in whatever it is in regard to in the dream. Or something that spoils the appearance in some way.

Useful Questions and Hints:

Is this referring to you?

What do you feel about the blemish?

Do you feel as if you are in some way not as good as you should be?

Use Talking As or Easy Dream Interpretation to get more insight into the dream.