Equine Dermatophilosis

Dermatophilosis is a condition that horses canhair root removing these hives does not seem to
contract. Dermatophilosis is a condition commonlybother or pain the horse inanyway. Once the scabs
referred to as rain rot, rain scald, and streptothricosis.hives are removed owners can see that the skin
Dermatophilosis that appears on the horses lower legunder the hives is generally a pink color and oozing a
is often called dew poisoning. Althoughyellow pus.
Dermatophilosis can be seen throughout the countryHorses affected by Dermatophilosis do not seem to
it is most common in the southeastern portion of thebe in pain nor do they appear to be embarrassed by
United States where the weather condition istheir condition. The only time the condition appears to
frequently wet, warm, and humid.    be painful is if the area affected is a covered with a
Dermatophilosis is most commonly seen in horsessaddle. Owners who have a horse who has signs of
mammals such as cattle, sheep, and goats are alsoDermatophilosis on their spine should refrain from
commonly affected. Dermatophilosis has also beenriding until the condition has cleared.
diagnosed in pigs, dogs, and cats although theTypically veterinarians do not recommend using any
condition is not as common. A few rare cases ofointments to treat Dermatophilosis because the
humans being affected with Dermatophilosis haveointments simply add moisture to the affected areas
also been diagnosed.of skin. One old time method for treating
The younger the horse the more likely it is toDermatophilosis is swapping the affected are with
contractDermatophilosis.used motor oil (for some reason fresh motor oil does
Horse owners that have dealt with cases ofnot treat the affected area). Most owners like to
Dermatophilosis say that their horses had scabs orbath theirhorses with antibacterial shampoos.
hive like bumps on that measured approximately oneDermatophilosis is contagious. If you have a horse
fourth of an inch across, these hives are typicallythat has been affected  try to separated it from its
easy to peel or rub off. Although these lesion werepasture mates. Make sure that you keep its
most commonly seen covering the horses haunchgrooming supplies separated from other horses. Do
area it is not uncommon to see the horse's entirenot use leg wraps, saddle blankets, splint boots, and
bodyaffected by Dermatophilosis.    halters on any other horses. If you have to use
Many horse owners assume that the rain rot isequipment on other horses make sure you
caused by a fungus. Dermatophilus congolensis iscompletely disinfect all the equipment before it
interesting because it shares charastics with bothtouches the hide of another horse. Keeping
fungus's and bacterias. They are wrong.equipment such as leg wraps and blankets dry will
Dermatophilosis is in fact caused by an organismhelp prevent a second outbreak of Dermatophilosis.
called dermatophilus congolensis. In horses theBecause the skin that has been affected with
dermatophilus congolensis works by entering theDermatophilosis is hairless it is prone to sunburn.
follicle of the horses hairshaft. Once it is in the horsesRather then swap the bald patches with sunscreen
hair shaft it can be seen in the form of a large hive.which adds moisture to the skin horse owners that
When these hives are removed from the skin horsekeep their horses outside should use a fly sheet to
owners can easily see several (literally dozens andprotect their horse from UV rays. The blanket should
dozens) of hairs embedded in each large lump.be washed on a regular basis to kill the 
Because the dermatophilus congolensis damages thedermatophiluscongolensis.