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==Description==
==Description==
A group of diseases affecting the epidermis caused by [[Dermatophilus congolensis|dermatophilus congolensis]] . Causes a range of conditions in large animals including rain scald in horses and strawberry foot rot in sheep. Lesions typically involve exudative dermatitis with scab formation. Is a zoonosis and affects humans in close contact with infected animals.
A group of diseases affecting the epidermis caused by [[Dermatophilus congolensis|dermatophilus congolensis]] . Causes a range of conditions in large animals including rain scald in horses and strawberry foot rot in sheep. Lesions typically involve exudative dermatitis with scab formation. A zoonosis affecting humans in close contact with infected animals.
==Signalment==
==Signalment==
Can be seen in animals of all ages but most commonly occurs in young animals who are chronically exposed to moisture.
Can be seen in animals of all ages but most commonly occurs in young animals who are chronically exposed to moisture.
Equine dermatophilosis
Equine dermatophilosis
Three clinical syndromes have been documented: rain scald, Mud fever and grease heel.
Three clinical syndromes have been documented: rain scald, Mud fever and grease heel.
Typically hair becomes matted and focal lesions develop into crusts and thick scabs covered by layers of yellow-green pus. When scabs are removed the hair is taken with them and alopecia results. Rain scald commonly affects the dorsum, shoulders and neck. It can however extend to lower portions of the body and abdomen. It typically begins as small rough raised bumps and can go un-noticed in0 long haired regions. Mud fever looks similar to rain scald but affects the pasterns and distal limbs. White legs and white- skinned areas are most commonly affected. Grease heel
Typically hair becomes matted and focal lesions develop into crusts and thick scabs covered by layers of yellow-green pus. When scabs are removed the hair is taken with them and alopecia results. Rain scald commonly affects the dorsum, shoulders and neck. It can however extend to lower portions of the body and abdomen. It typically begins as small rough raised bumps and can go un-noticed in0 long haired regions. Mud fever looks similar to rain scald but affects the pasterns and distal limbs. White legs and white- skinned areas are most commonly affected. Grease heel is a disease complex which presens in the same way as rain scald and mud fever over the heels. It produces a grey exudate which feels greasy to touch. The disease complex can involve dematophilosis as well as a number of other conditions including dermatophytosis, pastern folliculitis, pyoderma, photosensitisation, contact dermatitis and chorioptic mange.
Prolonged wetting of inected areas can lead to secondary bacterial infection which can result in limb oedema and cellulitis.
Prolonged wetting of inected areas can lead to secondary bacterial infection which can result in limb oedema and cellulitis.
**Papules, serous, exudative matting of hair, raised crusty scabs
**Papules, serous, exudative matting of hair, raised crusty scabs