It's important to figure out why you are experiencing the swelling before you can deal with it effectively- (is there a medical condition or is it from being too rough, for example)- you should probably see a doctor (if it doesn't go away), and have them take a look to determine the cause. The doctor will need more of your medical history and will need to do an exam to diagnosis. If it's from being too rough, you probably just need to let things heal up for a few days, a medical condition will require various treatments depending on what it is.