Itchy and red skin can be a sign of various issues, such as allergies, parasites, infection, or irritation from an environmental source. If it’s an ongoing issue, we strongly advise you to take your pup for a vet’s appointment, as medications may be necessary. For more information about itchy skin in dogs, we recommend you check out this guide and take a look at some of the best dog shampoos that are targeted for itchy skin.