Hi, i'm a female 29 years old. About a week ago, I have back pain on my left side. And a few days later, I feel my left side breast just under my arm feel itchy. I change my bra to a something similar to sport bra but made of cotton. And just yesterday I noticed several bumpy rash at that place. I still have back pain. And just now after taking a shower, I also noticed a patch of redness in my back. The place between the two rashes feel itchy like something crawling on it. The rash on the back for now its not painful or even itchy. Can you tell me what the possibility of this rash is? Before this, i've read on the internet that breast cancer can start from rash on the skin. Something called ibc. I'm freaking out now. But, let me be positive because now I feel like something crawling on my skin on almost all my left side, chest, back, waist and arms. Thank you for your help. I don't know if my explanation make a sense. Right, another thing is I sometimes have back acne. But it usually go unnoticed. I've also found some other diseases that has similar symptoms, like shingles and several skin rashes. Some even listed bone pain as a symptoms of rashes. I was hoping that my fear just unnecessary. And what i'm having right now is something far less scary than ibc. Because, besides all those symptoms I didn't notice any swelling in lymph nodes, my nipple is also fine. And no other breast cancer symptoms occur. Oh well. I should probably go to hospital to make sure of this. Once more thank you.