Hi
Can you post a photo? Is skin showing? If so, it it red and/or bleeding?
Will you be taking her to a vet?
Try store bought chamomile tea. Brew some cool it and dab it in the area. This isn't a cure but can help with the itchiness, and is also anti fungal and anti bacterial, and is safe if she ingests some.
However, you need to find out why she's doing this. Is it stress, sensitivity to an ingredient in her food or what.
Yes I took it to the veterinarian today she has a skin infection and the allergy she was giving a shot of antibiotics and also steroid and we sent home with the shampoo to shampoo the areas