... up to 8 hours Ready to use Safe to use with medication Doctor recommended for adults Features 1. Doctor recommended to ... provide cooling relief from the discomfort associated with migraine, headache, fever, muscle aches, sprains, over-exertion, hot-flashes ... gel sheets are non-medicated, they are safe to use with medicationPacking: 1 pc/bagctn size: 53x38x13cm, N. W. /G. W ...