The invention provides preparation methods of a formulated composition and an externally used preparation thereof with the effects on alleviating pain, diminishing 
inflammation, destroying parasites and relieving 
itching for treating 
trichomonal vaginitis and colpomycosis. The formulated composition and externally used preparation thereof comprise the following components in contents: 20-95% of 
angelica sinensis extract, 1-10% of gromwell extract and 3-30% of 
sophora alopecuroide extract. Shown by a mouse 
hot plate method, a torsion pain experiment, a mouse 
ear swelling method caused by 
xylene, a rat 
toe swelling experiment and an anti-
mildew experiment, both the composition and the externally used preparation have notable 
analgesic, antiphlogistic and antibacterial actions. The formulated composition and the externally used preparation provided by the invention adopt traditional Chinese medicinal materials as raw materials, have no toxic and side effects and can be used for a long term; especially, the preparation methods of externally used 
suppository, 
lotion and effervescing agent provided by the invention have simple processes and are favorable for industrialized production; the externally used preparation not only plays a local 
therapeutic action, but also can play a systemic 
therapeutic action; and shown by 
clinical tests, the formulated composition and the externally used preparation provided by the invention have the efficacies of alleviating pain, diminishing 
inflammation, destroying parasites and relieving 
itching, and can be used for effectively treating 
vaginitis.