Our Fever bath tea bags contain Organic Lavender buds, Organic Peppermint leaves and Organic Chamomile. These three herbs together with a lukewarm bath can reduce a fever within a few minutes. Just add a small amount of hot water to the tub, drop in the tea bag, let it sit for 10-15 minutes then fill the tub the remainder of the way with lukewarm water. A bath time of at least 10 minutes is recommended.