I have recently had some trauma to my breast and I believe there is what's a rather large hematoma on it. I don't think there is much swelling but it is tender to touch. I can tell there is blood pooling(clotting?) under the skin as well and it isn't like a bruise. I'm a minor and I have a lot of medical anxiety, but my parents dismiss my medical worries without even looking at what's wrong. They are very dismissive with anything I bring to their attention and have said this is just me being dramatic, but I would really appreciate some advice on how to treat a hematoma, how long they generally take to go away, and when to seek medical help. I am really scared about this and can't find anything online to help me.