Different treatments should be chosen according to the different causes of the vague pain inside the right breast, which mainly include diseases such as breast hyperplasia, pleurisy, muscle tissue strain and so on. 1. Breast Hyperplasia: Most of the breast hyperplasia is caused by abnormal estrogen level, when the hormone is elevated the breast will have cyclic pain, which can be improved by taking medication and so on. 2. Pleurisy: Pleurisy is an inflammation that occurs in the pleural cavity, mainly caused by viruses and bacteria invading the pleura, which is located in the chest, so there will be hidden pain inside the right chest, which can be treated by taking drugs such as moxifloxacin hydrochloride tablets, levofloxacin hydrochloride tablets, ampicillin capsules and so on. 3. Muscle tissue strains: muscle tissue strains are mostly caused by exercise and exertion in daily life, which can cause pain, and are mainly improved by hot compresses and massages. This symptom needs timely medical treatment, under the guidance of a professional physician to find the cause of the disease, do targeted treatment, so as not to delay the condition.