Hello doctor, my mom is suffering from mouth ulcers since long. Doctor prescribed her medications (cap cobadex z and orasep gel). Ulcers got cured with this medications but again she started facing the same problem. It seems this doesn't work. Also today morning she checked her throat and it seems red inside. She told me earlier when spitting in the morning while doing teeth brush, blood appears in spit. Please let me know if that's just a mouth ulcer/throat infection/tonsil problem and any thing critical. Lookinf forward for your quick response as her pain is troubling her and i'm getting more worried. Many thanks. With regards, meena.