The burning sensation in the anus and urethra should be caused by fire, in layman’s terms. According to the method of diagnosis and treatment in Chinese medicine, the type of evidence belongs to damp-heat injection. You can try to improve this symptom through dietary modifications, such as using Chinese herbs to make tea, you can choose honeysuckle, wild chrysanthemum, fishy grass, summer cress and other heat-clearing and detoxifying Chinese herbs to make tea, which can play a role in clearing heat and cooling the blood to relieve dampness. If there is a stinging sensation when you urinate, you may consider the possibility of a urinary tract infection more likely and need to go to the hospital for a urinalysis examination. If there is still pain in the anus, you can apply hemorrhoid cream at the anal opening, which can play a role in clearing heat and detoxifying, cooling the blood and relieving pain. Try to eat a light diet and avoid spicy and stimulating foods as well as fried foods. If the symptoms don’t improve significantly through the above adjustments, it is recommended to go to the hospital to find a doctor for symptomatic treatment.