A tea made from fennel seeds is widely used for relieving gas, dyspepsia, stomachache, and colic—for children and adults alike. Fennel seed tea is sometimes taken to help rid the lungs of phlegm. Mothers drink it to increase the flow of breast milk. Fennel seed poultices may be used for conjunctivitis. In Chinese medicine fennel is said to relieve indigestion and vomiting and to stimulate the appetite.