Mud fever , also known as scratches or pastern dermatitis , is a group of diseases of horses causing irritation and dermatitis in the lower limbs of horses. Often caused by a mixture of bacteria, typically Dermatophilus congolensis , and Staphylococcus spp , mud fever can also be caused by fungal organisms ( dermatophytes ). Photosensitization , chorioptic mange mites, contact dermatitis and other conditions also contribute to some cases. This condition is also known as dew poisoning, grease heel, or greasy heel .
Shingles can be very painful and itchy. It is not very dangerous to healthy people, and it usually ends without major problems. The rash and pain last 3 to 5 weeks. Sometimes, serious problems like temporary, partial facial paralysis , ear damage, or encephalitis may occur. Persons with shingles on the upper half of the face need immediate medical attention: the virus may cause serious damage to the eyes . Most people who have shingles have only one attack of the disease in their lifetime. However, people with AIDS , cancer or weak immune systems may have multiple attacks.