Breastache when touches

Just got lucky I found this page.. i just wanna ask regarding on my friend's condition. Just this day, shes been experiencing a breasts ache.. Everytime she touches it, its painful like it's swelling.. im just concern with her situation and i wanna know the possible cause. I hope you can help me, thanks
Answer

• May be due to an infection or breast abscess. She needs to be treated with antibiotics. Therefore, she need medical attention.