In severe cases of pharyngitis, symptoms such as fever and headache, lack of appetite, and aching limbs are usually present. Pharyngitis is generally caused by viral and bacterial infections of the throat, and stimulation of physical and chemical factors. 1. Fever and headache: acute pharyngitis is usually caused by viral and bacterial infections as well as physical and chemical factors. Viruses are mostly Coxsackie virus adenovirus and parainfluenza virus; germs are mostly composed of hemolytic streptococcus bacteria, which usually cause fever and headache in severe cases. 2. Lack of appetite: Usually, pharyngitis can lead to acute congestion and swelling of the pharyngeal mucosa and submucosal tissues in severe cases, resulting in lack of appetite. 3. Sore limbs: Acute pharyngitis usually occurs when the patient’s body resistance decreases, and the patient has fever and other symptoms, resulting in sore limbs. It is recommended that patients eat a light diet, avoid spicy and stimulating foods and avoid alcohol and tobacco, and go to the hospital for examination and reasonable treatment under the guidance of the doctor.