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Common Causes of Allergic Problems for Dogs


Dogs, like people, can suffer from allergies; so it’s good to know the common causes of allergic problems for dogs, if you want one as a pet. As in people, common signs of allergies are things such as watery eyes, coughing and sneezing, excessive scratching and biting, vomiting, diarrhea, fatigue, and moodiness are among the list.

In order to prevent one or more of these symptoms from recurring or being a chronic issue, you must first figure out what your dog is allergic to. Below are some of the most common culprits.

Parasitic Allergies

Insects such as fleas and ticks and parasites cause many of the allergies that affect dogs. When you first bring your new pup home from a breeder, shelter, or pet store, be sure to schedule an appointment with a vet as soon as possible. He or she will check to make sure that your dog has all of its shots and that it has been dewormed. This will prevent parasites from causing an allergic reaction in your dog. Although you will have to do this more than once during your dog’s lifetime, it is more than worth it to keep your dog healthy and happy. 

If you notice small red bites on your dog, or if the dog has been scratching the same area until bald spots appear, then he or she may have fleas, ticks, or mites. This particular allergic reaction is caused by these insects’ saliva. Spray your dog with medicine over the counter medicine that will kill the insects and their eggs. If your dog has open wounds, you should wait until they heal before doing so. If this is the first occurrence of the problem, take your dog to the vet. He or she may be able to prescribe an ingestible pill that will prevent future infestation. It is also recommended that you keep your dog indoors during flea and tick season. 

Food and Unknown Allergies

If your dog vomits more than once a week or has diarrhea for more than one or two days straight, they may have an allergy to their dog food. Switching to another brand or feeding the dog softer food may solve this issue. Regardless, take your pup to the vet so he or she can check to make sure that your dog is not suffering severely from the problem. Extreme diarrhea can cause dehydration, so make sure that you leave lots of water out for your dog to drink.  

If your dog becomes very moody or you notice that he or she is quite lethargic, once again, you should make an appointment with the vet. Most likely, it has some form of allergy. But without obvious symptoms to clue you in on what type it could be, you’ll need the vet’s expert diagnosis. 


Look into your dog’s breed or heritage to find out if there are particular things to which it could be allergic. Make a list thereof, and then remove and keep such items out of your home. Always pay attention to how your pup is behaving as well as its eating habits and diet. Sometimes even something as simple as eating too much grass can set of a previously unexpected allergic reaction. No matter what type of allergy your dog is suffering from, once you locate the root cause, take the all the necessary precautions to prevent recurring, serious allergic responses.  

This is a helpful look at dog allergies


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