Malaseb is registered to treat Seborrhoeic Dermatitis and Dermatophytosis. Seborrheic Dermatitis is the scientific name for a skin infection involving bacteria (Staphylococcus) and yeast (Malassezia). Dermatophytosis is the scientific name for ringworm, a condition which is not due to worms (like the name suggests) but is in fact a fungal infection.

It is normal in dogs to have low numbers of resident bacteria and yeasts on the skin surface. When there is a disruption to the skins natural ecosystem these bacteria and yeasts can overgrow causing disease.

Why is the natural balance disrupted?
Allergy, including to pollens, grasses, foods (meats) and fleas.
Parasites, such as fleas, mites and lice.
Hormonal problems
Conformational problems such as deep skin folds, making sweaty crevices.