Warm fever usually refers to warm fever disease, with clinical manifestations such as fever, heartburn, thirst, maculopapular rash (reddish patches or rashes appearing on the skin), dizziness, and so on. Usually warm fever disease is a general term for fever caused by an exogenous warm evil, with a rapid onset and rapid progression, this disease is usually contagious and prevalent to a certain extent. Most of the symptoms are characterized by certain signs of heat, such as fever, heartburn, thirst, red tongue, and number of pulses. Generally, if the disease continues to progress, it may lead to heat entering the blood (which is the deepest stage or location of the disease among the four periods of Wei Qi and Ying Blood in warm diseases) and clinical manifestations such as maculopapular rash and epistaxis (nosebleed). Heat spreading to the pericardium may lead to clinical manifestations such as convulsions and dizziness. Patients are advised to seek medical advice promptly if the above clinical manifestations occur. During the New Crown Epidemic, prompt medical attention is recommended if there are relevant symptoms.