Hi
This may be infected. I suggest that you have this assessed by your doctor immediately. An allergic reaction may also be considered if you have foreign objects attached to the nipples. A topical antibacterial cream or gel may be helpful. At this point, keep the area dry and avoid touching or picking on the areas as this may only cause further irritation.
Yeah go to a doctor....! Unless you reallllly like em, take them out.... nothin's not sexier than inflamed and ***** nipples, throbbing or not.