Is it okay to apply a mixture of Coptis powder and Vaseline on eczema?
Generally, if eczema symptoms are mild, Coptis powder mixed with vaseline can be applied to the affected area. However, if the eczema is severe, it is not recommended to use Coptis powder with vaseline. In such cases, patients should visit a hospital and receive symptomatic treatment under a doctor's guidance. The analysis is as follows:

Coptis powder is primarily made from Coptis, which has effects of clearing heat and detoxifying. When used externally, it has antibacterial and anti-inflammatory properties. Vaseline, on the other hand, is a moisturizer that mainly serves to hydrate and soothe the skin, helping to relieve symptoms of eczema such as dryness and flaking. Patients with mild to moderate eczema may apply Coptis powder mixed with vaseline as directed by a physician, which may help promote skin healing.
If the condition is severe, however, applying Coptis powder mixed with vaseline is not recommended. This mixture may block pores and reduce skin breathability, which could hinder eczema recovery. During acute eczema flare-ups, using vaseline may be largely ineffective and could potentially worsen the condition. It is advisable to follow medical advice promptly and use medications such as Levocetirizine Hydrochloride Tablets, Chlorpheniramine Maleate Tablets, and Hydrocortisone Butyrate Cream for treatment.
During treatment, patients should maintain a light diet and consume foods rich in vitamins to aid recovery.