I don't know if its a swollen sweat gland in my breast or what, however i do have a history of breast cancer in my family. i am scared help?

See a doc!: It's probably not this, but inflammatory breast cancer occurs suddenly with breast pain, redness, or swelling or a rash. Mammograms are often negative. It is very fast-growing and spreads quickly. Immediate chemotherapy is needed. It looks like an infection, so doctors often try antibiotics first, delaying diagnosis. See a medical oncologist immediately if you have these symptoms.