Mosquito all out liquid in my bag came in contact with my toothbrush and tooth paste sachet. I thoroughly washed both tooth brush and paste sachet in hot water and used them. I find my mouth slightly burning after using paste and brush. This Burning is almost there always, since it happened, a week time ago. Is it serious? I believe the trace of that chemical, might not have reached my inner stomach . It started worrying me about this slight mouth burning. Is it medically very serious?