Tea made from ground fennel seeds is believed to be good for snake bites, insect bites, upset stomach relief, food poisoning, and soothing a sore throat.

Fennel

​ (Foeniculum officinale) 

​A perennial with very fine hair like foliage.
Left undisturbed the clumps grow to 3 and 4 feet across. 
Raise from seed sown as soon as ripe or in spring, in drills
half an inch deep.  Thin at first to 6 inches apart and
ultimately to 4 feet apart. If the foliage is needed for
Fennel sauce, flavourings, &c, the plants should be kept
continually shorn by cutting out all flower stems, for  
once the plant has flowe red the foliage turns a poor  
colour and usually fades, and is therefore useless for 
culinary purposes. It left to seed itself unrestrainedly,  
Fennel can become one of the most tiresome weeds,
and owing to its long, tapering roots, even in the seedling
stage, is not easily hoed out.
Ancient Chinese medicine found beneficial uses for fennel, from congestion to conjunctivitis, to stimulate the appetite and increase the flow of breast milk.