My breast is leaking with heavy pain and swelling. it's never happened before help?

Breast leaking: Breast discharge can be caused by multiple reasons. When pain, redness and swelling are associated it could be caused by an infection or an inflammation, but also other problems could be associated. It is very important to get evaluated by your pcp or gyn provider as soon as possible whatever the cause of this problem might be. It is definitely a problem that needs to be taken care of promptly.