I used a long time ago... The same friend told me to use that. Oh, the stain is far from my surgery, the stain is always in the top of the tongue, not on the backside...
December, 2011 - T1N0M0 SSC Oral Tongue sugery (Dec 07, 2011). Partial glossectomy, primary closure. Selective Neck dissection, all 57 nodes free. 29 at diagnosis, no risk factors at all. No smoking, drinking and HPV negative. Can you explain? I can't.