<s>[INST] I've been chewing for about 4 and a half years. I noticed some white spots on in inside of my cheek so I figured it was leukoplakia. I started to rinse with Hydrogen Peroxide and I get this huge tingling sensation. It doesn't hurt, but it is not pleasant. Also before I rinse I have no signs of leukoplakia on my gum line, but after I've rinsed with the peroxide, it leaves a white residue on my gum line. What is happening and should i seek my personal doctor? I've just noticed this today. Should I wait for a couple weeks? [/INST] if its leukoplakia...personaly visit ur doctor to rule out other causes.....so that exact cause cud be determined.....and tretment cud be formulated </s>