My 3 year old daughter had contipation once and it hurt her to go and now she will hopd it till only a little bit comes out what she only poops about a tablespoon at a time she will fight to keep from going

We . We call this "stool withholding" and your daughter's scenario is very common in potty-training aged kids. The best way to treat this problem is to soften her stools for a few weeks so that pooping doesn't hurt. Eventually, she will get used to the fact that it doesn't hurt to poop and will be more willing to go. The initial problem is typically treated with a medication stool softener such as polyethylene glycol to soften the stool from the inside to make passing it less painful. You should call her pediatrician to discuss proper dosing and a plan. In the long run, a healthy, natural way to keep stools soft is to make sure your child is well-hydrated and eats plenty of fiber. Having her drink a glass of prune or pear juice every day can help with regularity. You may have to give a dose of polyethylene glycol here and there to keep her regular, but hopefully, you'll get to a good balance where using a stool softener is a "once-in-a-while" occurance.