Medical professional, please tell me if I could have malignant tumor if I have a big sore lump in my breast. Also what could save my life?

See MD-ASAP. You should see your md asap!. This big sore lump could be malignant vs non malignant condition (abscess etc). Any palpable breast lump - cancer should be ruled out. See your md immediately- so then you can have a proper evaluation and further testing- mammogram/sonogram and ultimately biopsy to establish a diagnosis.The treatment will depend on the cause- off course. Dont delay anymore- see md.