Esophageal cancer usually manifests itself as a foreign body in the throat and difficulty in swallowing food, but this difficulty in swallowing usually worsens gradually, initially it is difficult to swallow dry food with little water, then it becomes more difficult to swallow food with a lot of water, and the disease develops to a situation where even water and liquids cannot be consumed at a later stage, so the symptom of difficulty in swallowing does not happen overnight. In addition, esophageal cancer is more likely to occur in middle-aged and elderly people who do not chew enough times when eating and often consume hotter food, and it is more rare to occur in children. In addition, chronic pharyngitis can also cause a foreign body sensation in the throat when drinking water, but the main symptoms are sore throat, nausea, dryness and vomiting. It is easy to distinguish between the two diseases, but if you want to further confirm the diagnosis, it is recommended to have a barium meal examination at the ENT department of the hospital to clarify the disease so as not to delay the treatment. If you are suffering from pharyngitis, you can take some Wassup tablets, amoxicillin and other drugs to treat it.