A. Bumps can be caused by a number of things including minor allergies to food or environment, cuts or skin infections causing swelling under the skin, or just normal puppy "acne" as your dog enters her "teenage" stage of life. If the bump is not bothersome, it may be best to monitor it for any signs of changing size, becoming bothersome, or if redness appears.
If the bump is red or itchy, it may be good to look into her diet for any common allergens such as wheat, corn, or soy, and to see if the bumps appear anywhere else on the body. If the food is not a culprit, then a daily allergy medication may also help. If the bump is red or hot to the touch, painful, growing quickly, or oozing debris it may indicate an abscess, or infection under the skin, which should be treated by your vet via draining and antibiotics. If your dog is bothered by the area, placing a T-shirt or Elizabethan (cone) collar on her to prevent licking and chewing and spreading infection is best until you can get into your vet.
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