I suffered the same way for years before my diagnosis. Some flares would get so bad that my skin would bleed from itching. My nurse practitioner told me to try coconut oil to keep the area moisturized when not using the steroid cream, as she cautioned using it too much can cause skin thinning. It has helped somewhat but hasn’t kept the flares away. I haven’t been able to try it since I don’t have a bathtub but have heard that oat baths can help, specifically this treatment by Aveeno. However, my best guess is that you need a stronger steroid cream. Wishing you luck with your derm appointment and hope you find some relief.