1. Arnica flowers and roots can be used, and people usually use them as pain relievers, expectorants and stimulants.

2. Arnica flower is applied externally to the skin to effectively treat wounds, bruises and skin allergies.

3. Arnica can be made into ointment, which can be used to relieve muscle soreness or arthritis.

4. Arnica can treat skin wounds and allergic symptoms.

The precautions for Arnica and Arnica are as follows:

1. Arnica flower is famously aliased as Ba Leopard, Wolf's Hazard, Tobacco and Mountain. Arnica can also be injected into tinctures, pills and used internally. The tincture preparation is a highly concentrated drug and must be used with caution.

2. Other side effects of Arnica are related to liver, kidney and other internal organ failure. It can actually be fatal if used in large enough doses. While accompanied by rapid healing, diabetic patients or those taking anticoagulant medication should not take Anica due to various side effects.

3. Arnica ointment should not be applied to the broken skin. If skin irritation occurs after use, stop using it immediately.

4. Do not take arnica preparations orally, because ingestion of arnica will bring danger.