Thanks everyone for your replies and well wishes. She's healing up nicely, but decided to have a little scratch at it when I wasn't looking this morning. Back nail caught it but no too much damage. I'm taking a picture each morning so I can evaluate her process. Ariel swims A LOT (sometimes twice a day), and probably the moist skin under her hair helped to produce the hot spot. She also had an ear infection on the same side - coincidence?
@Shaz82
Hot Spots are Itchy, sticky, gooey and red.
With the summer months upon us there’s a chance you may notice something like this on your dog. There’s nothing pleasant about
hot spots. They are unsightly patches of infection that pop up on dogs seemingly overnight.
Pyotraumatic dermatitis, the medical term for hot spots, arises when a dog starts to chew at his or her own skin excessively.
Certain breeds, such as labradors and golden retrievers seem to get
hot spots more often than other breeds, any dog can become afflicted. Causes for hot spots range from underlying allergies, hormonal disorders or slow or improper drying of the dog’s coat. (i.e. swimming at the cottage)
Hot spots can develop very rapidly, going from a tiny, itchy spot to a large, angry lesion in a matter of hours. Left untreated, these superficial infections can develop into a deeper skin infection that can requires more substantial treatment. Some hot spots will respond to topical treatment. The key is to remove the fur that’s trapping moisture and debris on the skin and to keep the skin dry during the healing process. Your veterinarian can prescribe a product that is safe and effective, usually a combination of antibiotic and steroid.