Hi there, I am a 29 year old female. I have a red pimple like sore on the back of my upper right arm and shoulder area.  It has been there for about 3 months.  My dr. thought that I had shingles around that time, and treated me for that.  I had another sore that he saw near my bra line.  I was also experiencing pain allover my body.  He thought for sure it was shingles. This other sore just hasnt gone away.  When I try to pop it or open it, only blood comes out.  It is a circular sore on the inside. After agravating it, it gets really sore and dark.  I also have been experiencing tingling pain in my back and down my left side, some days better than others.  I occasionally get chills and pins and needles feelings in the back of my head and throughout my body.  I also have this sharp pain in my upepr left abdomen area, and sometimes i can push my stomach out and it gurgles.  Very weird.  The pain i get in my stomach is like a quick sting, and it occurs to my left side and then around my backside.    I also just had had baby in January.  I have had MRI of brain, Chest xray, thorasic spine xray, CT scan of neck, routine bloodwork, bloodwork for Lupus, Endoscopy, HIDA scan, and ultrasounds of my liver, pancreas, kidneys, as well as my thyroid levels checked.  I am wondering if all my pain is stemming from that one little sore?  Could it be cancer?  Is there something I can do to it to make it go away.  Something I can apply?
Hi dear thanks for query on ChatDoctoryou need to consult the dermatologist and biopsy of the sore may be required to get the answer whether infective/inflammatory/cancer.you can avoid touching other parts of the body after touching the sore. Wash your clothes separately and after wash dip in warm water with cup of detail.  Chat Doctor.