What do do for stasis dermatitis?

Protect. Avoid things that make you break out, soaps & wetness. Wash your hands only when necessary. Wear gloves when needed. Wear clothes made of cotton. Bathe only with a small amount of mild unscented soap, such as dove. Keep the water temperature cool or warm, not hot. Use the medicine your doctor gave you. Use a plain moisturizer daily. Avoid scratching or rubbing the itchy area. Manage stress.
Reduce pressure. As dr. Fisher said, the mainstay of treatment for stasis dermatitis is compression. The issue is that venous insufficiency causes venous hypertension which causes inflammation, skin changes, swelling, and pain. Compression reduces the pressure in the short term but what really needs to happen is that the venous insufficiency needs to be corrected. This can be done by seeing a vein specialist.
Stasis. The overall mainstay of treatment has always been aimed at lessening the clinical impact of the underlying venous insufficiency, which is typically accomplished with compression therapy. Assessing the patient's peripheral arterial circulation (clinically or with a doppler study) before recommending compression therapy is important.