What causes a sore throat and a foreign body sensation?
In general circumstances, the throat refers to the pharynx. Discomfort and a sensation of a foreign body in the throat may be related to dryness of the pharynx, pharyngeal muscle tension, enlarged tonsils, reflux pharyngitis, or chronic pharyngitis. If discomfort occurs, timely medical consultation is recommended. Detailed analysis is as follows:

1. Dry Pharynx
Dryness of the pharynx is commonly caused by insufficient environmental humidity, prolonged speaking, or inhaling dry air, leading to dehydration of the pharyngeal mucosa and resulting in discomfort and a foreign body sensation. Maintain indoor air humidity using humidifiers, and drink plenty of water to keep the throat moist.
2. Pharyngeal Muscle Tension
Prolonged states of tension, anxiety, or overuse of the vocal cords may lead to pharyngeal muscle tension and a sensation of a foreign body. Learn to relax by methods such as deep breathing or yoga to relieve stress.
3. Enlarged Tonsils
Tonsillar enlargement is usually caused by repeated episodes of chronic tonsillitis or inflammation affecting surrounding tissues. The enlarged tonsils narrow the pharyngeal space, causing a foreign body sensation. This condition is often accompanied by symptoms such as throat pain, difficulty swallowing, and snoring. Treatment typically involves the use of antibiotics such as Penicillin V potassium tablets, Amoxicillin and Clavulanate Potassium tablets, or Cefixime capsules, under a doctor's guidance.
4. Reflux Pharyngitis
Reflux pharyngitis may occur when stomach acid flows back into the throat area, irritating the pharyngeal mucosa and causing a foreign body sensation. Acid irritation can lead to this sensation along with burning discomfort. Additional symptoms may include belching, acid regurgitation, and retrosternal burning. Treatment typically follows medical advice to use medications such as Omeprazole enteric-coated capsules, Domperidone tablets, or Hydrotalcite chewable tablets.
5. Chronic Pharyngitis
Chronic pharyngitis may result from recurrent episodes of acute pharyngitis, long-term irritation from smoking and alcohol, or environmental factors. Chronic inflammation causes congestion, thickening of the pharyngeal mucosa, and lymphoid follicle hyperplasia, resulting in a foreign body sensation. Symptoms may also include dryness, heat, and pain. Under a doctor's recommendation, treatment options may include Compound Borax Mouthwash, Watermelon Frost Lozenges, or Yinhuang Particles.
To prevent this symptom, it is recommended to maintain indoor air humidity in daily life and avoid prolonged exposure to dry environments. Learn to relax, avoid speaking continuously for long periods or shouting loudly, and protect the health of your throat.