Is the bulb IN her enclosure? Could she have wrapped around it? Snakes do things like that, you know, & they accidentally get burned in their
desperation to be warm enough. Hope I'm wrong...as burns are very painful, slow to heal & very very preventable.
Several asked you about moisture in the cage, as a damp substrate can cause a bacterial issue that results in a "pink tummy" (where they've
contacted the moist & dirty cage floor), but it sounds as if you might have the opposite problem...too little humidity for a BP-? That shouldn't
cause a pink tummy, but it's definitely something you can & should improve upon.