CoolTone should not be used on patients displaying fever or who have such conditions as epilepsy, pregnancy, pulmonary insufficiency, a malignant tumor, or an allergy or sensitivity to latex. It also should not be used over a menstruating uterus, metal or electronic implants, or devices in the treatment area (such as hearing aids, pacemakers, drug pumps, implanted defibrillators, implanted neurotransmitters, or cochlear implants).