Dressing Up / Styling Yourself dream meaning is explained below using 1 different source. Each interpretation is shown with its source.

Interpretation 1 — Martha Clarke

Makeup usually symbolizes falsehood in human relations. Consequently, when the characters of our dreams groom themselves, these images are related to cheating and lying.

The same happens when you use makeup yourself. Distorting your image can prevent you, momentarily, from seeing your own shortcomings. But sooner or later the mask will disappear and your disguise will not hide the truth any longer. 

Source: The Big Dictionary of Dreams Author: Martha Clarke