Causes of axillary nerve pain include herpes zoster, inflammation, breast disease, etc. It is necessary to improve the symptoms through medication or surgery under the guidance of a doctor after identifying the cause of the disease. 1. Herpes zoster: pain in the axillary nerve may occur when herpes zoster virus is infected, you can take antiviral drugs such as acyclovir to treat the disease and relieve the pain. 2. Inflammation: local inflammatory stimulation can also cause pain in the axillary nerve, you can take antibiotics such as azithromycin, erythromycin and other drugs to control the infection. 3. Breast disease: some breast hyperplasia or tumor affecting the axillary nerve can also cause axillary nerve pain, which can be treated by surgery under the guidance of the doctor. Due to the complexity of the etiology and individual differences, the drug is not absolutely the most effective, it is recommended to follow the doctor’s instructions to standardize the treatment, the emergence of adverse reactions to timely consultation, drug allergy is prohibited.