Compound Phellodendron Bark Liquid is mainly used to treat yang symptoms (all acute, dynamic, strong solid, excitatory, hyperfunctional, metabolically increased, progressive, outward (surface), upward symptoms) after sores and ulcers have broken down, and is generally not used for the treatment of eczema. Compound Huangbai Liquid is composed of dandelion, centipede, cypress, forsythia and honeysuckle. It has the efficacy of clearing heat and removing toxins (removing heat and toxins in the body), subduing swelling and removing decay (eliminating swelling and removing decay), etc. It is commonly used in the treatment of sores and ulcers after ulceration and wound infections, which belongs to yang evidence. The adverse reactions and contraindications of this product are still uncertain, clinical only can be used externally, can not be used as internal medicine, pregnant women are prohibited. Eczema should be timely medical treatment to avoid delay, the use of this product, should be under the guidance of a professional Chinese doctor, identification of the use of medication.