What causes redness on both sides of the tonsils?

Nov 27, 2025 Source: Cainiu Health
Dr. Lu Cheng
Introduction
Redness on both sides of the tonsils may be caused by dietary irritation, dry environment, acute tonsillitis, acute pharyngitis, peritonsillar inflammation, etc. It can be improved by adjusting diet, maintaining moisture, and medication. If redness is accompanied by severe pain, fever, or other symptoms, prompt medical attention is required. Excessive consumption of spicy or hot foods can irritate the tonsillar mucosa, causing congestion and redness.

The redness on both sides of the tonsils may be caused by dietary irritation, dry environment, acute tonsillitis, acute pharyngitis, or peritonsillar inflammation. This condition can be improved through dietary adjustments, moisturizing care, and medication. If the redness is accompanied by severe pain, fever, or other symptoms, prompt medical attention is necessary.

1. Dietary irritation: Consuming excessive spicy or hot foods can irritate the tonsillar mucosa, causing congestion and redness. There may be no significant pain or only mild discomfort. It is recommended to switch to a light and easily digestible diet such as porridge or soft foods, drink plenty of water, and avoid further irritation from spicy or hot foods.

2. Dry environment: Prolonged exposure to dry air can lead to moisture loss in the tonsillar mucosa, resulting in blood vessel dilation and redness, possibly accompanied by throat dryness and itching. It is advised to use a humidifier to increase ambient humidity, drink warm water regularly, and suck on sugar-free lozenges to relieve dryness.

3. Acute tonsillitis: Inflammation caused by bacterial or viral infection leads to congested, swollen, and red tonsils, accompanied by severe sore throat, difficulty swallowing, and possibly fever. Patients may take medications such as amoxicillin capsules, Pudilan Xiaoyan oral liquid, or ibuprofen suspension under medical guidance to alleviate symptoms.

4. Acute pharyngitis: Inflammation spreads to the tonsils, causing redness on both sides and congestion of the pharyngeal mucosa, along with symptoms like sore throat, dryness, and cough. It is recommended to use medications such as cefaclor dispersible tablets, Lanqin oral liquid, or compound borax mouthwash under a doctor's supervision to relieve discomfort.

5. Peritonsillar inflammation: Infection of the tissue surrounding the tonsils causes redness and swelling on both sides of the tonsils, often associated with worsening unilateral throat pain and difficulty opening the mouth. Patients may follow medical advice to take medications such as cefuroxime axetil tablets, metronidazole tablets, or Xiguashuang throat lozenges to improve symptoms.

Maintain good oral hygiene by rinsing the mouth frequently, eat a light diet rich in fresh fruits and vegetables, drink plenty of water to keep the throat moist, avoid loud speaking, and ensure adequate rest to support recovery.