Well, not quite 101 questions, but a few.
Canestan is the stuff you treat it with, right?
How do you know when it has finished it's ringing / died / vapourised or whatever it is that ringworm does? Or do I continue to treat it until the ring dissapears completely?
How long does it take to go?
Do I need to see a doctor about it or is it one of those sort it out yourself things?
How contagious is it, will the rest of the family get it?
Thankyou