2.Place clove oil cotton ball: when the cavity bottom exposes the pulp angle to produce severe pain, you can place clove oil cotton ball to relieve the pain. 3.Use dental floss and apply iodine glycerin: when gum swelling and pain is caused by food fiber often embedded between teeth, you can use dental floss or flosser to remove the retained food and apply iodine glycerin on the gum surface to relieve inflammation and pain. 4.Cold compress treatment: when acute pulpitis occurs, with throbbing and throbbing pain, you can apply cold compress treatment. If you have an acute pulpitis with pulsating throbbing pain, you can apply cold compresses with ice water or ice on the affected side to induce capillary constriction and reduce the pressure in the pulp cavity, thus relieving the pain.