Does anyone make their own herbal wormers? If so what do you put in it and how much? What's the dosage? I live in Canada and I've found it difficult to find a herbal wormer that doesn't break the bank in either conversion rates or shipping. Any recommendations on that?

We clipped our fair goats last night and I noticed fleas on them. Can I use a medicated dog shampoo on them, or can I put Tea Tree/Citronella oil on them? Or is there something I need to use to get rid of the fleas and keep the other bugs from biting them now that they are shaved?