Bruises on my side when invert

Hi everyone, I can spin with the best of them now. I have just gotten strong enough to invert. but here's my problem, without a abominable wrap to protect my skin, I get terrible bruises on my side and my skin gets stuck to the pole! Which burns and causes more gross, gross bruises. Is this like with pole sitting and the pain will subside after it's desensitized? Should continue to use the wrap until I'm stronger? I don't want to halt my progress by waiting until my side heals over and over. Any advice or personal experiences helpful. Thanks! 🙄