Thank you for looking into this.
Is she on flea preventative?
Does she go outside?
Have you treated her with anything to this point?
How long has she been itching?
Thank you for the additional information. There are a couple of things that can cause this itching. The first one is fleas. I would definitely treat her with the frontline once a month. The other reason could be food allergies. I would treat for fleas, and if you don't see an improvement, you should have her evaluated by a vet, to determine what steps to take. Also, you mentioned she recently got a haircut. Sometimes, the shampoo or clippers can cause an irritation. You can also give her benadryl at a dose of 1mg/kg or 1/2 mg per pound. Let me know if any of these suggestions work. I am here if you need more help. Good luck with your baby.