Itching on one breast

I just had a clear mammogram and ultrasound of my right breast. I’m elated! But for the past week and a half I’ve had a lot of itching in that breast. I’ve had itching on and off before but not to this extreme. I mentioned it the doctor last Friday and she said itching is not associated with breast cancer. My breast doctor called me yesterday to tell me everything was clear, which I already knew, so I mentioned it to her again. She said to take Benadryl which I have, and use some hydrocortisone cream which I’ve been doing three times a day since this all started, and to see a dermatologist which I already knew.
I called my dermatologist yesterday to get an appointment and nobody returned my call. I called again today and they’re out until Monday. The hydrocortisone isn’t cutting it. I’m itching like crazy! I swear every time I turn around there’s something new with this breast!
Anyone else had this and have any remedies for the itching until I can get in to see my dermatologist? And any idea of what could be causing it since all of my mammograms and ultrasounds have come back normal. The only difference this time was Birads 2 instead of 1 from the previous mammograms but it didn’t say what was found, just benign findings.