Replying to Boney Lump Back of Heel

I'm getting a huge lump on the back of my heel from my ski boot.
My boots are certainly not too big so it's not that.
It's like a bone spur but it's on the heel not the side of the foot.
Whenever I flex forward it kills and I can't ski properly for about 5 runs until it goes numb. It's gotten to the point that I almost cry when I put my boots on and I never cry and I can't walk for an hour after I take my boot off . I'm stuck in a small town where i can't get my heel punched yes i know that's what I need and I can't stop skiing as i'm on a national team camp.

However I was wondering has anyone got this? Is there anything you can do to help it apart from not skiing and blowing/ punching the boot out? Does icing actually help, as it seems to make it worse. * I search barred and couldn't find anything. Any help is appreciated.

Spark Notes: Big bony lump growing on heels.
What can I do to help it apart from boot modifications?
Any Natural remedies or exercises or anything?