A dog may appear to be recovered and yet have further complications a few hours later. It is best that any dog suffering from a heat illness be seen by a veterinarian before returning to work. Heat stroke is a definite crisis. The symptoms include staring eyes, vomiting, diarrhea, deep and labored breathing, bright red oral mucous membranes, and a rectal temperature that may be as high as 109.5o F. Treatment requires immediate immersion in cold water. This is a life-threatening condition that will likely result in brain damage even if the dog survives.
Prevention is the handler's responsibility.
The desert air can greatly affect a dog's ability to search. A dog must have moisture available in its nasal membranes in order for the scent to be carried to the odor receptor sites. The process of sniffing in dry desert air dries out the membranes faster than the handler may expect. Dust is often heavy in the desert environment and also dries out the nasal membranes. The handler needs to remember that the dog will need frequent rest stops and water in order to work well.