Our dachshund, Max is allergic to 3 kinds of dust mites and flea saliva. We had a blood sample sent by the vet to Heska for allergy testing. They developed a serum for him which he now gets monthly. During the summer he was getting it every two weeks. It really did help. Check with your vet about the allergy testing.

Max got the same kinds of bumps. He still has some, but they are getting fewer since we also discovered that he is allergic to the corn in dog food. Through process of elimination and some help from PT people (Thanks again Micki & ParNone!!), we changed all their food to "Wellness Fish & Sweet Potato". Currently he is not itching and chewing. Such a relief for him.