Hi and welcome
Have you self-diagnosed or has your vet diagnosed ringworm? What treatment have you been prescribed and what are you treating with?
Here is our ringworm guide:
Ringworm: Hygiene And Pictures
Please follow the advice on bathing in the guide. Please do not shave your guinea pigs; a wash at the start and at the end of the acute phase (illustrated in pictures) is in the guide. Please don't panic and overreact.
You can best access our information via the guides shortcut on the top bar where the green links to the various guides are all laid out and listed in order for reference purposes, which is not possible on the open forum.