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==Description==
==Description==
Cutaneous '''Habronemiasis''' is a hypersensitivity reaction to the larvae of the nematode species ''Habronema'' and ''Draschia''. The adult nematode lives in the stomach of the horse and produces eggs which are then passed in the faeces as larvae. The larvae are ingested by the [[Musca spp.|house fly]] (''Musca domestica'') or stable fly (''Stomoxys calcitrans'') in their larval phase, and deposited on equine skin when they feed as adult flies.
Cutaneous '''Habronemiasis''' is a hypersensitivity reaction to the larvae of the nematode species ''Habronema'' and ''Draschia''. The adult nematode lives in the stomach of the horse and produces eggs which are then passed in the faeces as larvae. The larvae are ingested by the [[Musca spp.|house fly]] (''Musca domestica'') or [[Stomoxys calcitrans|stable fly]] (''Stomoxys calcitrans'') in their larval phase, and deposited on equine skin when they feed as adult flies.
The condition is characterised by '''ulcerative, granulomatous''' skin lesions which do not heal.
The condition is characterised by '''ulcerative, granulomatous''' skin lesions which do not heal.
==Treatment==
==Treatment==
Systemic '''glucocorticoids''' decrease the inflammatory response of the the hypersensitivity reaction, oral prednisolone is effective at a dose of 1mg/kg SID or BID for 14days and then tapered.
Systemic '''glucocorticoids''' decrease the inflammatory response of the the hypersensitivity reaction, oral prednisolone is effective at a dose of 1mg/kg SID or BID for 14days and then tapered.
Organophosphate pastes and anti-inflammatory pastes can be applied to the wound until it has healed, or the wound should be bandaged to prevent reinfestation.
Organophosphate pastes and anti-inflammatory pastes can be applied to the wound until it has healed, or the wound should be bandaged to prevent reinfestation.
Excessive granulation tissue should be removed surgically.
Excessive granulation tissue should be removed surgically.
Ivermectin or appropriate anthelmintics should be used to limit nematode infestation, fly control will also reduce exposure to the larvae.
Ivermectin or appropriate anthelmintics should be used to limit nematode infestation, fly control will also reduce exposure to the larvae.
* Knottenbelt, D.C. '''A Handbook of Equine Medicine for Final Year Students''' ''University of Liverpool''
* Knottenbelt, D.C. '''A Handbook of Equine Medicine for Final Year Students''' ''University of Liverpool''
*Rose, R. J. and Hodgson, D. R. (2000) '''Manual of Equine Practice''' (Second Edition) Sauders.
*Rose, R. J. and Hodgson, D. R. (2000) '''Manual of Equine Practice''' (Second Edition) Sauders.
[[Category:To_Do_- lizzyk]]
[[Category:To_Do_- lizzyk]]