The rash is gradually dried up, or even dried up and crusted, with some of the crusts gradually falling off, leaving hypopigmented or hyperpigmented spots. 2. Systemic manifestations, the original high fever gradually turns into low fever, or even normal body temperature, and the original fatigue, nausea and vomiting symptoms gradually disappear. 3. 4. self-conscious symptoms, the original intense itching gradually changed to mild itching, or even no itching. All of the above are signs of gradual improvement after effective antiviral treatment.