Reasons for Itching Inside the Upper Part of the Mouth Mainly Include: Oral allergy syndrome, pharyngitis, and oral ulcers. If you experience itching inside your mouth after eating one or several foods, it is likely that these foods caused allergic symptoms in the throat, usually accompanied by redness, swelling, and pain. The itching and pain symptoms caused by pharyngitis are generally concentrated in the throat area, and oral ulcers can also cause pain and itching at the affected site.
Oral Allergy Syndrome: Itching inside the upper part of the mouth is generally considered to be caused by oral allergy syndrome, which is mainly due to an allergic reaction in the oral and pharyngeal area after eating one or several foods. It usually manifests in the lips, tongue, and palate, mainly characterized by redness, swelling, pain, irritation, and itching. Recommendation: Take anti-allergy medication immediately to alleviate the symptoms, while identifying and avoiding the allergen. Common allergic foods include crab, taro, pineapple, mango, kiwi, and peach.
Pharyngitis: Pharyngitis can also cause itching inside the mouth, but the itching caused by pharyngitis is mainly concentrated in the throat area. Pharyngitis is mainly caused by viruses and bacteria, manifesting as throat discomfort, pain, itching, or dryness, as well as burning, smoky, and foreign body sensations. Recommendation: Seek medical attention for appropriate treatment.
Oral Ulcers: Oral ulcers are one of the reasons for itching inside the mouth, mainly due to long-term recurrent ulcers of varying sizes from rice grains to soybeans on the oral mucosa, gums, tongue, or throat, with a white necrotic membrane on the surface. Most oral ulcers are mainly painful, while a few may exhibit symptoms of pain and itching. Recommendation: Taking vitamin B2 can help relieve or treat oral ulcers.
