My daughter hurt her middle finger @ softball 2day now its swollen from the knuckle up, if its broke would they do nething or can it heal on its own?

It is better to. Check it out, some time this sign for fracture and that fracture could effect the joint and need something done about it.Good luck thank you.
Swollen injured fing. She need to have it xrayed.If it is broken and shows on xray, then they will put a finger splint and the finger will heal without any complications in 4 to 6 weeks.