17 month old fell and hit head on tile floor!

She has a bruise and a lump on her head and wondering how to treat it. she's acting normally and running around like it never happened but it's worrisome seeing this blue bruise on her :(...I will be informing her doctor tomorrow just so she'll know but I can't find nothing about how to treat it **UPDATE** I do not have a working phone and will have to wait until my husband comes back in town tomorrow to use his. He has our only car and I cannot walk to my neighbors because of the distance and I'm high risk. All im able to do is ask for help here and send out an email to her doctor.*****I don't know anything about apps...I got my first phone only a few weeks ago and it was a typical basic phone, it still had buttons on it. I can barley operate my husbands computer, that's what I'm using the app through, the browser. he found it for me so that I can have people to talk to and keep track of my pregnancy. I'm not one for fancy technology