Water should be brought to a gentle boil, and then poured into a tea pot containing the herb. Cover the infusion and let sit for several minutes. The infusion can then be strained into a cup. Do not boil the herb as you will boil away the essential oils. Consume approximately 2 ounces, four times a day.
Chamomile is an anti-inflammatory, soothing herb useful during the cold season.
It also prevents vomiting. A useful book describing plants and procedures is Ody, P. 1993. The Complete Medicinal Herbal . Decoctions Decoctions are used with roots, twigs, bark, and berries where more intense processing is called for. You would start the process by placing the herb in cold water, bringing to a boil, and simmering for about one hour.