Take 4 -5 slices of good wholemeal bread and some wine vinegar
to make a dough. Grease the painful place with a good cream or olive oil and put the dough on it and bandage. I would leave it for the night, but still if your skin is too sensitive, take care the first time. Repeat for five nights. I' ve seen a friend of mine that really got rid of this; she thinks for good. Feedback and message would be appreciated after you apply. Might help others