Severe tooth pain may happen because of tooth decay, cavity, gum infection, wisdom tooth problems, tooth abscess, sensitivity, cracked tooth, or inflammation around the tooth nerve. The pain may worsen while eating, drinking hot or cold items, chewing, or lying down, and sometimes swelling or headache may also occur if infection is present. Pain-relieving medicines such as Paracetamol or anti-inflammatory pain medicines are commonly used for temporary relief, depending on your medical condition and stomach health. Warm saltwater rinses, avoiding very hot or cold foods, and keeping the mouth clean may also help reduce irritation. If swelling or infection is present, dental treatment and sometimes antibiotics may be needed after proper examination. Clove oil or cold compresses may provide short-term comfort in some people, but they do not treat the underlying dental problem. Avoid placing aspirin directly on the gums because it may burn the tissue. Seek dental care if swelling develops, fever occurs, pus appears, or the pain becomes severe enough to disturb sleep or eating.