What are the effects and contraindications of ginger therapy?

Ginger therapy is usually regarded as the operation of applying crushed ginger externally on the local skin to treat diseases externally. Ginger therapy has the effect of warming the meridians and channels, warming Yang and dispersing cold, and can be used to treat or improve stomach pain, wind-cold and dampness paralysis of the spleen and stomach. It is not suitable for people with allergies; and prohibited for people with heat syndrome; and not suitable for people with broken skin to apply externally. Ginger is warm and stimulating, apply it to the local area, there will be a burning sensation, so it can play a certain role for cold diseases, and ginger itself has the effect of warming the middle and dispersing cold (to warm the spleen and stomach medicines to dispel the cold) to stop vomiting, so for the spleen and stomach due to cold stomach, stomach pain, nausea and vomiting have a certain effect. Due to the irritation of ginger, it should not be used by allergic people, and is prohibited for people with heat syndrome, and is not suitable for people with broken skin to apply externally. Specific operation is recommended to apply under the guidance of a physician, do not self-medication to avoid causing damage to the body.