How long should be applied to the navel with ginger should be determined on a case-by-case basis, if the navel paste ginger for a few hours the symptoms are relieved, there is no need to re-apply. If the cold evidence is more serious, it can be applied for a longer period of time. If allergic symptoms, should be removed in time. Ginger navel patch efficacy is more, you can warm the cold (to warm the spleen and stomach medicine to dispel cold), to drive out the cold and dampness caused by the spleen and stomach weakness, chronic diarrhea, chronic abdominal pain and other conditions, but also able to faster relief of abdominal discomforts, such as abdominal pain, diarrhea, nausea, vomiting and so on. If the symptoms have been relieved in a few hours after the ginger is applied to the navel, it can be removed at any time. If the symptoms are more serious, such as their own suffering from more serious cold evidence, can be a long time in the navel compress ginger to warm the uterus dispersal of cold, this time can be applied before going to sleep, applying a whole night. But if the ginger compress site itching, redness, swelling and other allergic symptoms, to be removed in a timely manner to avoid damage to the navel skin. Discomfort should be timely medical treatment, under the guidance of the doctor to choose medication, not self-medication.