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=Sweet itch=
This is hypersensitivity caused by flies of ''Culicoides spp.'' and a recurring seasonal problem in susceptible donkeys is common. Observations at [http://drupal.thedonkeysanctuary.org.uk/ The Donkey Sanctuary] would indicate that a familial predisposition to sweet itch might exist.
==Clinical Signs==
Sweet itch presents as a '''pruritic dermatitis''' with lesions, usually along the '''dorsal surface''' of the donkey from '''neck to rump'''.
==Treatment and control==
[[Image:Sweet itch blanket donkey.jpg|right|thumb|250px|<small><center>Donkey wearing a blanket to prevent sweet itch. (Image courtesy of [http://drupal.thedonkeysanctuary.org.uk The Donkey Sanctuary])</center></small>]]
* '''Control of the midges''' should effect a cure
* In more severe cases the use of '''topical antibacterial shampoos''' and even [[Antibiotics|antibiotic]] and [[Steroids|corticosteroids]] may be indicated
There are a number of other control measures that can be used, each with variable success.
* Avoid areas favourable for the breeding of midges, such as stagnant water, decaying vegetation and manure
* Problem fields or areas (tree cover, overgrown hedges, low lying or sheltered pastures) should be identified and avoided, and low risk areas (open windy hill tops) should be utilised
* Midges are most active at dusk and dawn so it is recommended that donkeys are stabled during this period
* Insect repellents: Deet (N,N-Diethyl-m-toluamide)
* Insecticides: 4% permethrin and benzyl benzoate (do not apply to broken or damaged skin)
* Recently Boett blankets have been used to good effect at [http://drupal.thedonkeysanctuary.org.uk/ the Donkey Sanctuary] for donkeys with a history of sweet itch. The blankets are made of a special lightweight and breathable fabric that prevents midges biting. It can be used with a hood covering the ears depending on the part of the donkey affected by the sweet itch
==References==
* Trawford, A. and Getachew, M. (2008) Parasites In Svendsen, E.D., Duncan, J. and Hadrill, D. (2008) ''The Professional Handbook of the Donkey'', 4th edition, Whittet Books, Chapter 6
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