Cold stimulation is a typical phenomenon of painful cold stimulation, which is seen in most cases of pulpitis and may occur during the acute exudative phase of pulpitis. The main reason for this is that during the exudative phase cold stimulation can shrink the local exudate, thus reducing swelling and temporarily relieving pain, but in most cases of pulpitis, hot and cold stimulation can cause pain. The best treatment for this condition is to go to a professional dentist for pulpotomy treatment. The professional doctor will determine the position of the tooth and apply the dental power system to open the pulp of the tooth, and the pain will be relieved immediately after opening.