unpleasant taste in mouth

のどの痛み, 口の中の痛み, 口臭, 嚥下困難

Gingivostomatitis is characterized by inflammation of the gums and mucosa and multiple mouth ulcers. This inflammation results from viral infections, particularly those that cause common childhood illness such as herpes virus (cold sores and acute herpetic stomatitis), Coxsackie viruses (hand, foot and mouth disease and herpangina). 

のどの痛み, リンパ節は首に拡大, 口やのどに白い斑点, 食欲不振

Strep throat (or "Streptococcal pharyngitis", or "Streptococcal Sore Throat") is a form of Group A streptococcal infection that affects the pharynx. ... 

口の中の痛み, 悲痛な顔に腫れ, 腫れぼったい顔, 頭痛

上腹部痛, 吐き気, 胃の痛み, u36;吐

Gastroesophageal Reflux Disease (GERD; or GORD when spelling oesophageal, the BE form) is defined as chronic symptoms or mucosal damage produced by the abnormal reflux of gastric contents into the esophagus. 

口の中の痛み, 女性の性器潰瘍, 女性の燃焼排尿, 発疹や皮膚にバンプ

Herpes simplex virus 1 and 2 (HSV-1 and HSV-2) are two strains of the Herpes virus family, Herpesviridae, which cause infections in humans. HSV-1 and 2 are also referred to as Human Herpes Virus 1 and 2 (HHV-1 and HHV-2). 

のどの痛み, 口の中の痛み, 口臭, 食欲不振

Herpangina (from herp, an itching, and angina, a sore throat, literally "a choking"; also called mouth blisters) is the name of a painful mouth infection caused by coxsackieviruses. Usually, herpangina is produced by one particular strain of coxsackievirus A, but it can also be caused by coxsackievirus B or echoviruses. 

口の中の痛み, 腫れぼったい顔, 頭痛, redness on one side of face

上腹部痛, 吐き気, 嚥下困難, 胃の痛み

Esophagitis (or Oesophagitis) is inflammation of the esophagus. ... 

のどの痛み, 嚥下困難, 痛み歯ぐき歯茎の出血, 食欲不振

Stomatitis is an inflammation of the mucous lining of any of the structures in the mouth, which may involve the cheeks, gums, tongue, lips, and roof or floor of the mouth. The inflammation can be caused by conditions in the mouth itself, such as poor oral hygiene, poorly fitted dentures, or from mouth burns from hot food or drinks, or by conditions that affect the entire body, such as medications, allergic reactions, or infections. 

しこりや顔の腫れ, 悲痛な顔に腫れ, 腫れぼったい顔, 顔面痛

Parotitis is an inflammation of one or both parotid glands, the major salivary glands located on either side of the face, in humans. The parotid gland is the salivary gland most commonly affected by inflammation.