I mean Venom is injured all the time in ways that would clearly impact a body within it. So either the host body goes full caterpillar-coccoon and is basically jelly while Venom is fully formed, or the host’s body becomes immune to injury/near fully regenerable, in which case Venom could wreck the host’s face without worry.

All of venom’s mass is already clearly pulled from the meat dimension, so what’s a little more for a glam rock tongue?