Believe it or not, some dogs are even allergic to
cold weather..and will develop welts after being exposed to the
cold outside air...!
It is also possible it could be due to an insect bite,Fleas, bee or spider..? (My Boxer is allergic to any type of insect bites.) If your dog is getting the welts everyday, you really need to find out what is causing the reaction. For temporary relief, and
Until you find out what is causing your dogs allergic reaction, you can give the dog Benedryl..