Hyssop is cultivated for its flower tops, which are often steeped in water to make an infusion for use as an expectorant to thin and loosen mucus.
Hyssop also helps with asthma, arthritis, and wound healing. It comes in tablet, capsule, tea, dried herb, or tincture forms. The most favored way to take hyssop is in warm water, such as in a tea, because it provides more of a catalyst to loosen mucus.