It sounds like hot spots. Try giving her some benadryle and hydrocortizone cream .she might need to fo get a cortizone shot to help her out with this. It is that time of year that these start showing up.
Under My Dog Tail There Is Red Like Bumps It Kind Of Look Like Freckles And It Cause Her To Lose Some Hair And Cause Her To Itch Bad! What Is That?
My dog had something similar to that it was cause by allergies I would check with your local vet if it is allergies a allergy shot should clear it right up hope this helps
