Linda Sparky and Lani came with Ringworm and yes I treated it holistically. Luckily my old dog that was dying of cancer did not get it. My routine was probably extreme to many but it worked. I will try to see if I can figure out what I used, it has been 4 1/2 yrs ago so am not sure.
1. Go online to Revival Animal Health and order some Health Guard Laundry Additive and disinfectant. It should have the instructions in it on how much to use. I used this to clean my carpets, spray on my couch, added it to my laundry and on anything that could not be bleaced. It is safe, it did not harm or ruin anything. It is supposed to last for 30 days if I remember right. So I redid everything just before the 30 days was up. I added it to every load of laundry I did. If you want to read more about it do a search: Laundry additive for feline ringworm, it should pull up several sites to look at.
2. After I cleaned the rooms I did not want them in I closed them off. Mine had the run of the house except the bedrooms. I took the bedspreads, all decorative stuff, basically stripped things down after cleaning and put them away. I covered the furniture and washed the covers in the additive every week.
3. I vaccumed and wiped down everywhere at least 1-2 times a week, cloroxing the tiles, tubs, counters ect. Spraying the heat vents also.
4. I did the baths with the medicated shampoo
My Vet shaved the areas and had me get a black light and check for new spots 2-3 x a day. My girls had it on the ears, mouth and nose so we had to be careful what we put on it. This is the part that got rid of it and I don't how you can get it. My Vet had me go to a dr she uses and he makes a purified Castor Oil, it is different than what you get in the store, I don't know if I can get you some or not, but if you want I will check. He puts it in a capsule, I pricked the end of it and just rubbed a tiny bit on the spots with a Q tip. The oil made a huge difference. I don't know what he did to purify and dilute it to make it safe so I can't advise you on that.
Have never had and hope and pray I never do. The word "Ringworm" is enough to give me nightmares, Mange makes me want to run away.