There are many reasons why tooth discoloration work. Constant staining from favorite drinks and foods cause this tooth discoloration process.
Yes, it can. Exactly why you would use peroxide at all is also questionable.
Vitiligo and the big black scab is from a spider bite.
Ues
Polycystic ovarian syndrome may include discoloration of the skin. This discoloration is known as acanthosis nigricans, and is typically found on the back of the neck, groin, and armpits.
would a gall baldder attack cause pain in my lower abdom days later and numbness in my right leg and right hand
Cause leg pain and weakness
Tetracycline
chlamydial infection
toxo plasmosis
Neck
You should see a doctor about it. Do not take it out. If it is infected, that would trap the infection and cause an abcess to form. If its a new piercing, discoloration is normal. I would go to your piercer first unless the discoloration has lasted for more than 2 weeks or if you feel nauseated, dizzy, or weak.