If a person has herpes, why they can't they use a fat freezer machine? I didn't see a reason why but it states not to?

What type Herpes are you referring to and where are any lesions on your body?
This would need to be discussed with your provider.

Herpes is not a contraindication for having Coolsculpting . Having a history of post herpetic neuralgia from a previous shingles infection is considered a relative contraindication. This means case by case basis must be factored into the decision making process as a treatment may exacerbate or cause relapse of the condition because the virus remains dormant in the nerve roots and cold temperatures can possibly cause the condition to manifest