What causes an itchy and buring throat?

The occurrence of "itching" and "burning sensation" in the throat are two common irritating symptoms. The underlying causes are diverse, ranging from mild short-term irritation to health issues that require attention.
To assist you in making a preliminary judgment, the following lists the most common reasons along with their characteristics:
Possible causes Typical symptoms and characteristics Key clues
1. Environmental stimuli and inhalants Throat dryness, itching, burning pain, possibly accompanied by dry cough. Appears or worsens after exposure to smoke (including cigarettes, e-cigarettes, kitchen fumes), dry air, polluted air (PM2.5), or chemical odors.
2. Viral infection (such as cold) Throat pain, itching, burning sensation, often accompanied by nasal congestion, cough, fever, body aches. Has a history of contact, symptoms gradually appear within a few days, usually self-limiting (improves within about a week).
3. Allergy Severe itching in the throat, possibly accompanied by burning sensation, often with nose itching, sneezing, clear nasal discharge, eye itching. Occurs seasonally or after exposure to specific allergens (such as pollen, dust mites, pet dander) and can be relieved by avoiding the allergens.
4. Gastroesophageal reflux (GERD) Throat burning sensation (heartburn), foreign body sensation, itching, chronic dry cough, may worsen in the morning. Symptoms worsen when lying down, bending over, or after a full meal, closely related to diet (greasy, sweet, coffee), may not be accompanied by typical stomach pain.
5. Bacterial infection (such as streptococcus) Throat pain is the main symptom, with obvious burning sensation, often accompanied by high fever, swollen tonsils or white secretions. Usually no cough, severe systemic symptoms. Requires doctor's diagnosis and antibiotic treatment.
6. Overuse or dryness of the voice Throat dry, itchy, slightly painful, hoarseness. Appears after prolonged speaking, singing, shouting, drinking water can temporarily relieve.
?? How to conduct preliminary analysis and response
You can conduct a preliminary analysis based on the following clues:
Review of exposure history: Have you recently been exposed to a new air environment, chemical substances, or have you started/increased smoking or vaping?
Observe accompanying symptoms: Are there symptoms such as nasal congestion, fever, stomach discomfort, or acid reflux? This can help distinguish whether it is an upper respiratory tract problem or a reflux issue.
Evaluation duration: Acute episodes (lasting for several days) are mostly related to infection or irritation; chronic symptoms (lasting for several weeks) should consider allergies, reflux or chronic irritation.
?? When should one see a doctor?
If any of the following situations occur, it is recommended to seek medical attention promptly:
Symptoms are severe or persist for more than one week without improvement.

There is a high fever (with body temperature exceeding 38.5℃), swollen lymph nodes in the neck, or coughing up blood-stained sputum.
The suspicion is of bacterial infection (such as strep throat), and antibiotic treatment is required.
The suspicion is that it is caused by acid reflux. It requires assessment by a gastroenterologist and standardized treatment.
Note: Considering your previous questions, it is particularly important to remind you that the smoke and chemicals produced by smoking, using electronic cigarettes, or hookahs (regardless of whether they contain tobacco) are common direct irritants that cause throat itching and burning sensations. If the symptoms are related to this, the most fundamental way to relieve them is to avoid exposure.
Due to the inability to conduct a face-to-face consultation, the above information is provided solely for your reference and preliminary assessment. If your symptoms persist or worsen, please be sure to consult a doctor for an accurate diagnosis and treatment plan.