Patients with mastocytosis develop pain under the axilla mainly due to reactive lymphadenitis caused by blocked lymphatic return from the mastocytosis. Patients may present with unilateral or bilateral breast swelling or lump formation during menstruation, along with ipsilateral or bilateral axillary lymph node enlargement, and in severe cases, unilateral or bilateral enlargement, lymph node pain and other uncomfortable symptoms. Axillary lymphadenitis is also known as reactive lymphadenitis, because its development is mainly due to the blockage of lymphatic flow by breast enlargement, so the main treatment is aimed at the primary disease of breast enlargement, including relaxation, de-stressing the liver, avoiding excessive exertion, avoiding eating too greasy, spicy and stimulating food, and in very serious cases, you can consider using oral Chinese medicine, such as Zun Yao Wan or masturbation elimination, to make the body’s estrogen, progesterone and prolactin levels The painful symptoms of the enlarged lymph nodes in the armpits can be relieved or disappeared, and the enlarged lymph nodes may also shrink or disappear without surgery.