Breast enlargement swelling and pain after drinking coffee can be relieved by medication and general treatment. 1. General treatment: Coffee contains caffeine which may lead to endocrine disruption and aggravate the condition of mammary gland hyperplasia. In this case, it is recommended to drink less coffee, strong tea and other stimulating beverages, and use a hot towel with wet compresses to relieve the pain when the symptoms flare up. 2. Medication: If the swelling and pain lasts for a long time, you can use triamcinolone acetonide to treat it under the guidance of a healthcare professional. However, it should be noted that although this drug has a better therapeutic effect, it should not be used for a long period of time, so as not to cause adverse effects on the uterine lining and ovaries. To summarize, the treatment of breast hyperplasia mainly focuses on relieving the symptoms, and secondly, it is also necessary to actively prevent the emergence of other mammary gland diseases and conduct regular review.