Hi,
Lots of good advice here already. For the time being: I found in the Animal Desk Reference Manual (Essential Oils for Animals) by Melissa Shelton under Giardia on page 417 a list of possible remedies. One that you may have access to is Clove oil - you can put a drop or two in her water daily or in her food. Essential oils are very effective against parasites.
PA Passes Vet Disclosure
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PENNSYLVANIA Enacts Veterinary Disclosure into PA Code http://www.pacode.com/secure/data/049/chapter31/chap31toc.html
NOTE: Vaccines are "biologics".
Chapter 31 State Board of Veterinary Medicine Principle
7 (d)…..Veterinarians shall practice in accordance with advancements and acceptable and prevailing standards of veterinary medical practice in this Commonwealth related to the pharmacologic properties, indications and contraindications of drugs and biologics.
(e) Veterinarians shall explain the benefits and reasonably anticipated significant potential risks of treatment options to clients.