I had a similar issue, which turned out to be pretty simple: I had missed a part of my toenail when trimming it.
The part wasn't actually visible as I've drawn it here—it was in between the skin there. As the toenail grew, that part began to painfully poke into the skin, especially when wearing shoes.
The pain disappeared immediately on trimming off this ...
It depends on whether the hammer toes are due to functional problems or are fixed. If the proximal interphalangeal joint can be passively extended, then an orthotic can help. If the passive issue is neurological then exercises won't help as they won't be able to maintain the joint in the correct position when you're not doing the exercise, and you're not ...
If there's any obvious fracture, follow RICE - Rest, Ice, Compression, Elevation.
Do not bear any weight until you can see a specialist and get a diagnosis, and a diagnosis you are happy with.
Try to rest it as much as possible and keep the limb elevated above the heart as much as you can until you have professional medical advice.
In my situation: