Went to check on my calves and I was watching them for a while and I noticed a drip coming from under the calf, flipped her over and her navel was all wet and open a little bit in the middle she is eating good, not as much grain but most of what she was eating. I put some Iodine on her and gave her a shot of penicillin. Should I wait and see if she gets better or just call the vet?