I'm thinking atopy (skin allergy) or inhalant allergies.... Substances which can cause an allergic reaction in dogs are much the same as those which cause reactions in people including pollens, dust mites and molds, just to name a few. A clue to diagnosing these allergies is to look at the timing of the reaction. Does it happen year round? This may be mold or dust. If the reaction is seasonal, pollens and grasses may be the culprit.
Symptoms of inhalant allergies include: SCRATCHING, BITING, CHEWING AT FEET AND CONSTANT LICKING. The itching may be most severe on feet, flanks, groin and armpits. Dogs may rub their face on the carpet. Ear flaps may become red and hot. Chronic ear infections may follow. Skin becomes thickened, greasy and has a strong odor. Hot spots may develop due to irritation from constant chewing or scratching, which is then followed by infection. Allergies have also been implicated as a possible cause of Acral Lick Granulomas, a frustrating, treatment resistant condition whereby the dog creates a sore on his skin from constant licking.
Could also be a food or flea bite allergy...Like inhalant allergies, food sensitivities primarily manifest themselves with itchy skin. Other symptoms include anal itching, shaking of the head, ear inflammations, licking front paws, rubbing faces on carpeting and rarely vomiting, diarrhea, flatulence, sneezing, asthma like symptoms, behavioral changes or seizures. Many people don't suspect food allergies as the cause of their dog's itching because their pet has been fed the same food all its life and has just recently started having symptoms. However, animals can develop allergies to a substance over time, so this fact does not rule out food allergies. Another common misconception is that dogs are only sensitive to poor quality food. If the dog is allergic to an ingredient it doesn't matter whether it is in premium food or the most inexpensive brand on the market. One advantage to premium foods is that some avoid common fillers that are often implicated in allergic reactions. Dogs are not allergic to a dog food per say, rather they react to one or more of the ingredients in the food. Some of the most common culprits are beef, pork, chicken, milk, whey, eggs, fish, corn, soy, wheat and preservatives. Many animals are now developing allergies to lamb as well. This was once thought to be very hypo-allergenic, but the more it is used, the more sensitivities are springing up.
Flea allergy...This type of reaction, again usually severe itching, is not to the flea itself but rather to proteins in its saliva. Dogs most prone to this problem, interestingly enough, are not dogs who are constantly flea ridden, but those who are exposed only occasionally! A single bite can cause a reaction for five to seven days, so you don't need a lot of fleas to have a miserable dog.
To test for flea allergies, a skin test is performed which must be read in fifteen minutes and again in forty eight hours. Unfortunately injections to desensitize are not very effective because it is hard to collect enough flea saliva to make a serum!
For dogs with this problem a strict flea control regime must be maintained. I would caution you, however, against using strong chemical preparations on your dog. Often times the flea control program produces more harmful effects than the fleas, including seizures and skin problems, so please use caution. I recommend a natural product like Sergeant's Nature's Guardian for dogs and puppies, it kills and repels fleas, ticks, and mosquitoes at some Wal-mart stores. Or Liquid Net for Pets The Ultimate Pet Insect Repellent to repel fleas & ticks this can be purchased at
Liquid Net for Pets The Ultimate Pet Insect Repellent - 12 oz Ready-to-Use
I would have the dog checked out by a Vet. to see what's going on!!!!