It’s the Dog Days of Summer and if it’s anything like last year, they could be with us well into October. So you may not be the only one in the family who’s suffering from allergies and insect bites along with the sweltering heat and humidity. Your four-legged companion might be itching as well.   Generally speaking, summertime in Middle Tennessee is not peak season for pet allergies. But they do occur and, combined with flea and tick bites and wasp and bee stings, this can be a particularly uncomfortable time of year for domestic dogs and cats.   Dr. Todd Hurst of Harpeth Valley Animal Hospital...