Anal swelling and pain can mostly be seen in perianal abscesses or hemorrhoids and other anorectal diseases. In daily life, anal swelling and pain can also occur if constipation is followed by forceful defecation. Anal swelling and pain caused by constipation can be relieved by resting on your own, or by taking a warm water bath to promote the reduction of swelling; if it is caused by disease, the swelling can be accelerated by fumigation bath, medication or surgery under the guidance of a doctor. The onset of effect may vary from person to person depending on the cause and severity of the disease, and should be treated rationally.1. Fumigation and sitz bath: fumigation can be carried out with Chinese herbal tonics or compound thorax fumigation with the effect of clearing heat and detoxification, such as bitter ginseng, scutellaria and red peony. Milder cases can also use warm water or warm salt water sitz bath to promote blood circulation in the swollen and painful parts, to reduce the role of swelling. You can also use the appropriate concentration of potassium permanganate solution sitz bath, to play a bactericidal and anti-inflammatory effect, can relieve anal swelling and pain; 2, drug treatment: can follow medical advice in the swollen and painful parts of the external erythromycin ointment, Longzhu ointment and other drugs with anti-inflammatory and bactericidal effect, some patients with hemorrhoids can also apply magnesium sulfate wet compresses, the application of compound keratanate suppositories to protect the rectal mucosa, reduce swelling and pain. Patients with perianal abscesses can take oral antibiotic drugs such as levofloxacin and ofloxacin under the guidance of a doctor to promote the reduction of swelling; 3. Surgical treatment: If the perianal abscess is feasible, abscess incision and drainage is a fast and effective method to reduce swelling. Some patients with thrombosed external hemorrhoids or mixed hemorrhoids can also undergo surgery if they meet the indications. In daily life, you should pay attention to a light diet, eat easily digestible food, avoid spicy, cold and other stimulating food, drink more water and reduce sedentary, so as not to aggravate the symptoms of anal swelling and pain.