There are a number of possible reasons for a dog to have itchy lumps on the body. I won't be able to say for sure without seeing her, but I can give you a few ideas.
If the lumps suddenly appeared then it is possible she is having an allergic reaction to an insect sting. If this is the case, you can talk to your vet about giving Benadryl as this will help. If it is an allergic reaction because of a bee or wasp sting then you shouldn't need to give the benadryl for more than 2 days.
If there are scabs over the lumps then it is possible that she has a skin infection. Unfortunately skin infections almost always need to be treated with oral antibiotics which would have to be prescribed by your vet.
Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.
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Dr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.
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