In daily life, plaster preparations may be more commonly used to relieve bone and joint or muscle pain, and may be used for plasters or for other treatments. The fact that the plaster is itchy after being applied does not indicate that it is detoxifying. In addition to itching, there may be redness, burning sensation or other irritation that may occur as a result of allergic reaction to the plaster. Once this happens, the patient is advised to remove the cream for observation, and if the symptoms are serious, go to the hospital for medical attention. In short, itching where the cream is applied cannot be said to be detoxifying, and must be observed for other discomforts. Patients with allergy symptoms should try to reduce local stimulation, avoid scratching, should not be scalded with hot water, and avoid strong sunlight or hot wind stimulation. Keep the affected area clean and hygienic, eat more fresh fruits and vegetables, and enhance the body’s immunity.