please don't panic. internal parasities can easy go off for youe snakes without vet.
you can buy 1 botlle of 1 Liter panacur for internal parasites and 1 botle of 200mg flagyl oral for protozoans .
you can give the drug oral. i did this 1 month later after i purched my first ball python and i succesful give the drugs without any problem after 1 week my bp start eating like crazy. (2 month anorexia)
i have 17 snakes with respiratory diseasce (don't ask why) and i succesfull give the right treatment and now all eating.
buy this drugs and tell me to tell you the right treatment.
its not haard. beleive me

DONT PANIC.

vets want your money
am sugesting you to buy reptile medicine and surgey by duglas mader. i just receive today and kill my mind. 129 dollaras from amazon.