My 5 year old keeps getting painful sores in his mouth. When I brush his teeth, they bleed. Doctor and Dentist don't seem concerned. They keep saying it's an injury from a straw or something. It's not that....that is just ridiculous! Anyway, does anyone know if Lyme could cause this? He was on abx for a year and has been symptom free for 5 1/2 months. I don't know what this is and it scares me. The most important question I have is...how can I treat them? I would like to do it naturally if possible!