Ngaiol.I am a reired GP. It doesn't sound like breast cancer. More like a blocked duct. Breast cancer is not sore and itchy. Do get your DD to see her GP but in the meantime don't worry would be my advice.
It might have gone by Monday. I've had breast cancer and have had multiple lumps and bumps since then, all cysts, necrosis or random other things. None cancer. I was just unlucky the first lump WAS cancer.
My daughter has just arrived and shown me a lump on her nipple which arrived yesterday. It is raspberry coloured and right on the tip. It is itchy and sore. Makes me think of the red spots that are happening on my older body. Dr., of course, on Monday but any comments, please, Ladies. Thank you.