Changes

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.

Affets horses, sheep, cattle, goats, pigs and rarely dogs and cats.

Affets horses, sheep, cattle, goats, pigs and rarely dogs and cats.

==Diagnosis==

==Diagnosis==

Can often make a diagnosis on history and physical exam. Impression smears can also be useful when stained with either gram stain or Giemsa and examined microscopically.

Can often make a diagnosis on history and physical exam. Impression smears can also be useful when stained with either gram stain or Giemsa and examined microscopically.

==History and Clinical signs==

==History and Clinical signs==

Lesions commonly occur followng heavy rainfall and commonly affectsthe dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.

Lesions commonly occur followng heavy rainfall and commonly affects the dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.

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.

Tpically focal lesions develop into crusts and thick scabs covered by layers of pus. When scabs are removed the hair is taken wit them and alopecia results.

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

 

 

**Papules, serous, exudative matting of hair, raised crusty scabs

**Papules, serous, exudative matting of hair, raised crusty scabs

**Scab formation more prominent in sheep and cattle than in horses

**Scab formation more prominent in sheep and cattle than in horses