Help! My ear is infected..?

So I just got my ears pierced about 2 1/2 weeks ago... I woke up this morning and my ear piercing was crusty with dried up blood and it hurt, so my mom tried to take out the back of the post but it hurts so much that I didn't let her. When I came home from school the piercing was like engraved in my ear so i pushed it up but it didn't really help. I cleaned it though but I am not going to take it out because it hurts to much and I just got this pierced. I heard to put neosporin on your ear but I'm not sure if that will help. I also heard if you put your ear in warm water with salt it helps. I have salt you use in food but I am not sure this is the right type of salt. Any suggestions? Thanks!