Hi there ~
The knee and groin tenderness will also go away within a few days. If it does not then it probably was not related to the injury
in the big toe of his right foot and I advise you to take pain medications over the counter. However if this does not solve the problem and it continues to remain I would have to advise you to take medications from a pain specialist since this sounds like neuropathic pain
. Also try using a multivitamin
with vit. C in it as it helps with healing. I hope this helps.
Take care and have a lovely day !