I took the dog to the vet because it was not my dog .
I didn't know if someone would try to get it back -- or try to blame me for its condition.
This dog was very ill .
It was truly a life or death situation .
We never had any one attempt to claim the dog and never found out who it belonged to.
People knew I was a soft touch for animals so finding an abandoned animal in an empty run was not that unusual.
We've had litters of beagles, several pregnant cats , mangy dogs , on and on.
Lots of experience .
ringworm --- and mites respond to improving the immune system - without which you can have no lasting change
and both respond to sulfur - so MSM with food , and sulfur topically -- sulfur soaps , salves , borax .
I have a basic kit for the you-never-know-when-it-might-come-in-handy dept . In that kit is Davis Lime Sulfur
useful as a dip or rinse
https://www.medi-vet.com/Davis-Lime-Sulfur-Dip-Concentrate-p/16178.htm
I also have Nu-Stock . very high sulfur content --
Nu-Stock - Topical Skin Product - Herbal Healer Academy
Have used Nu-Stock on a dog that had malassezia -- in addition to an anti fungal and general health boost diet
for ringworm or other fungal problems there is also Mane n Tail Pro-Tect - antimicrobial , anti fungal ,
People have long enjoyed sulfurous baths --- The classic Roman baths at Bath England , the sulfur springs in Iceland
Coconut oil and tea tree oil mix are good for both ringworm and mange .
I am never adverse to getting a Vet diagnosis or a Dr's medical diagnosis.
Have recommended it many times on the forum - go find out .
My fear is that they come running at you with antibiotics which are totally inappropriate or uncalled for which creates another set of problems - vicious circle --
or come running with treatments which have so many side effects and/or merely suppress the symptom but do not address the cause .
The better you know what your treatment options are the better it is for you .
these are some options.