Waxing is read as enduring discomfort for the sake of appearance, or removing something quickly and decisively. It reflects what you are willing to bear to be presentable.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.