Dermatophytosis or ringworm is a clinical condition caused by fungal infection of the skin in humans, pets such as cats, and domesticated animals such as sheep and cattle. Ringworm is caused by fungi of several different species and not by worms.
The fungi that cause parasitic infection feed on keratin, the material found in the outer layer of skin, hair, and nails. These fungi thrive on skin that is warm and moist, but may also survive directly on the outsides of hair shafts or in their interiors.
To prevent spreading the infection, lesions should not be touched, and good hygiene maintained with washing of hands and the body.
A home remedy you may try is applying apple cider vinegar 3 times per day and rinse well with water after a few minutes.
Our Scalp Anti-Bacterial Formula / Scalp Fungus Treatment has been helpful.
Here is a link to it-