Have developed Crepey skin on the upper arms what is the cause of this in Chinese Medicine
As always the best would be to consult directly with an acupuncturist in your area who can physically inspect you and ask lots of health/lifestyle related questions. There are many potential causes that run the gamut from parasitic infections, allergies (internal and external causes), certain psychiatric issues, nerve issues from the neck or other neurological issues from the brain. A practitioner will be able to go down through your history and other related issues and figure this out. It also may be helpful to get general western bloodwork to rule out things such as anemia which can also cause issues like this.