Chickenpox is an infectious disease caused by varicella-zoster virus infection, mostly seen in children. The signs of fast recovery from chickenpox are usually manifested as significant relief of systemic symptoms, most of the rash has crusted over and some has fallen off, and appetite and mental status have improved significantly. The signs of a clear remission of systemic symptoms of chickenpox generally refer to the development of high fever to low fever, or even a return to normal body temperature, systemic symptoms such as headache, fatigue, sore throat, cough, nausea, loss of appetite, etc. significantly improved or gradually subsided. In general, before the rash of chickenpox appears, the patient starts to have the above-mentioned systemic symptoms, and after the appearance of the chickenpox rash, the above-mentioned symptoms usually gradually resolve. In addition, the chickenpox rash starts from a red rash to a papule and then develops into a herpetic rash, appearing in batches, with the characteristic of “four generations in one”, i.e. the same area can be seen as a rash, a papule, a blistering rash or even a crusted rash. If most of the rash has crusted or the redness around the rash gradually disappears and the itchiness gradually reduces to subside, it suggests that chicken pox is almost ready. If all the scabs fall off, the rash is healed. Chickenpox takes about 7-10 days from the time it starts to appear until the scabs fall off. Children have lighter symptoms and recover faster, adults are generally heavier than children and are prone to combined pneumonia, and combined pneumonia is only indicated by the relief of respiratory symptoms.