To dream that you are wearing a mask suggests that you are trying to be someone you are not. You are trying to hide your true feelings and only reveal half truths. If you have trouble taking off your mask, then it suggests that your true self is lost or blurred. Alternatively, wearing a mask signifies temporary trouble due to some misunderstanding of your action and conduct.
To see someone wearing a mask in your dream denotes that you are struggling against deceit, falsehood, and jealousy. If someone removes their mask, then it symbolises failure in gaining the admiration and/or respect of someone sought for.