if this pain reoccurs it could be a lack of b12 and you must get the doctor to do some blood tests as i had a foot like that and as i am so stubborn i suffered it for over 7 years even though the pain made me sick and sweat..and eventually it spread to my spine..then i was in a mess,,if this pain comes back then it may be b12 and she will have nerve damage..and will need treatment i get injections..but you can also try the tablets..it may be something minor and the doctor will tell you but remember what i have told you as they dont test for b12 until its too late...i was nearly dead before they tested me..and i am not joking about that..so i try to make others aware ..