What kind of allergic reaction is this?
Hello, Just a little bit of background, I have a 8 month old female Blue Heeler, a couple months ago we started noticing bumps all over her back, some even had puss spots where she would bite at them (on her lower back) but she does have them all over, we took her to the groomers, had her shaved so we could see the severity of the bumps... the groomer recommended that we change her food to a grain free diet, which we did I've had her on taste of the wild and no prohealth i think its called, but its also grain free...we have had her on this new diet a little over two month now, the bumps have went down some ( no more puss spots), but she still has them pretty bad and is constantly itching...now the past week or so she will randomly break out on her belly super bad, which you could see from the picture, I was unable to get a picture of the bumps on her back due to her fur being so think.. But if anybody has any idea what could be wrong i would love to hear it, thank you in advance.
With skin problems things get tricky because there are like over hundreds of skin disorders in dogs. Until you get a diagnosis (if you can get one, as even vets are baffled at times) you really don't know what you may be dealing with. While allergies are often one of the main causes for bumps on skin there are other conditions, so switching food doesn't always do the trick. Also, with food allergies, dogs can be allergic to just about anything, the most common being to beef, dairy, wheat, egg. This is why vets often prescribe for food allergies special foods made of novel proteins that dogs have never eaten before (duck, bison, kangaroo). Generally, vets will tackle suspected allergies by prescribing these diets and giving allergy pills such as benadryl or other types of anti-histamines and then they watch if the dogs gets better. If after this, the dog doesn't get better, allergy testing may be done, but this is often expensive and it's hard to test for so many things.
On the other hand, it can be you are not dealing with an allergy at all. For example, pyoderma is a bacterial skin infection that causes pimple lesions that are commonly on the dog's groin area and tend to fill with bacteria and pus and can become big blisters. Pyoderma is caused by bacteria and therefore requires a totally different approach (medicated shampoo).
So I think your best bet is to see your vet and see exactly what you are dealing with.
Yes go to the vet. This looks painful. My dog had skin allergies too but not this bad. I added omega 3 supplements and her coat is beautiful and no more scabs.