Kelly Osbourne is feeling the burn –and it’s not from all the moving she’s been doing on the ninth season of Dancing With The Stars.

The rock princess turned out the dance floor with an impressive rumba on Monday’s Latin Dance Night on DWTS, but it’s that unslightly burn beneath Kellz’ arm that really has folks talking.

The star posted an image of burns to her armpit on Twitter , burns she claims appeared after she used Impulse Body Spray. “Never ever use Impulse body spray from the UK. I sprayed it on myself and now have really bad burns all over my body. Gentle on skin my ass!” Kelly told her 160,000 followers.

In response to comments from her fans, she later added: “That’s just my armpit. The one on my tummy is much worst! They just had to send my dress for tonight back to fix so it covers my burns.”