Annoying feeling under right breast and armpit what can it be and numbness all over and pain all over if feels prickly help?

Breast pain: If there is something i never take lightly it's breast pain. Any time i ever have a patient describe breast pain to me, i always have the patient come into the office for an exam and possible sonogram. I would suggest contacting either your primary physician or gyn for an exam, particularly if you are in pain such as you decribe.

Cellulitis: If u shave under the armpit could be skin/ hair follicle infection / if u sweat a lot could be skin infection from skin fungus. Try a skin ointment like neosporin plus lotisone . If not better see a family doctor.