Estrogen cream question…

I know this has been discussed a lot in term of facial use... I tried my prescription vaginal estrogen cream on my face a while back, and it worked like an absolute dream, but I got a little melasma spot on my cheek and stopped using it.

However, I recently read that it’s possible to use it on the neck and jawline without getting melasma.

Have any of you used it just on the neck, and if so, what were the results? Thank you! I am desperately fighting crepe like it’s my full time job. 🤪