Cheilitis generally occurs more frequently during cold, dry seasons and can vary in severity from time to time. There are many causes of cheilitis, which may be related to psychological factors, excessive fatigue, malnutrition, endocrine disorders, a deficiency of certain vitamins, or traumatic factors. It can cause an itchy feeling and sometimes a painful sensation. If cheilitis is caused by herpesvirus infection, it could lead to significant pain. It's also possible that during the recovery phase when crusts form, a slight itching might occur. This generally indicates that the cheilitis is in the recovery phase, which is a sign of improvement. It is advised that patients should not scratch with their hands, but can gently apply a small amount of anti-inflammatory ointment with a cotton swab to the affected area. If the itching is very severe, one can cautiously press with a sterile cotton swab, and perhaps puncture lightly. However, it is crucial not to scratch with hands, as our hands often carry many bacteria, which can lead to further bacterial infections. (The use of medications should be under the guidance of a professional doctor.)