My friend was complaining that he has a sore foot...this has continued to get worse over the past 3 days...he now says it feels as though its broken...to sore to touch. he says its a bit swollen, but there isnt really any huge color change. I would also like to add that he has minor frost bite on both his feet (a few purple toes, and some spots on his feet) I am curious as to why his foot may feel this way??