The causes of chest swelling and pain in patients are considered as follows: a. Herpes zoster in the chest: this is a viral skin disease caused by the varicella-zoster virus, which can be seen mainly in the chest as erythema, papules, clusters of blisters in a band-like distribution and is accompanied by significant pain. This pain is mainly due to damage to the nerve roots after the herpes virus has involved the intercostal nerves. For treatment, ganciclovir dispersible tablets and mecobalamin tablets can be taken orally, while topical medications such as glyburide lotion or penciclovir cream can be applied. If the patient experiences significant pain, this can be combined with oral pregabalin capsules, as well as the treatment of red light and acupuncture. Second, the physiological factors: women before menstruation, the breasts will appear swelling and pain, mainly due to changes in the body hormone levels, causing the expansion of the breast ducts, and therefore the swelling and pain of the breasts, then it is recommended that patients pay attention to rest, reduce staying up late, and at the same time reduce excessive mental stress. Third, the history of trauma: after the patient has been hit by external forces or heavy objects, there is a possibility that the breasts will become distended and painful. Therefore, for patients with swelling and pain in the chest, it is recommended to go to a regular hospital and under the guidance of a professional dermatologist to carry out the appropriate treatment.