Hi, Doctor, I was having earache since last 3 days. I used Otogesic ear drops and the pain is now almost reduced significantly. It started when I drank a glass of very chilled water under the hot sun. That ear pain shiftd from right ear to left on the next day. The pain spread to my neck and throat. I have been having too much pain in my throat as well since then. My tonsils are not swollen as such, but I can feel a lump like thing inside my throat when I attempt to swallow. It is slightly painful but I cannot feel it from the outside. Also, there is some slight formation of blackish lines/patches on the walls of upper part inside my mouth. I used to be a smoker, but I have quit smoking since last 4 days. I am worried if it is throat cancer or just an infection?