Itching is a disease.
Itching makes people fidgety and anxious to reach out and scratch, just like being sick makes people unable to sleep, and patients are always anxious to find a doctor.
So in a dream, itching means getting sick, and dreaming of itching means getting sick.
Dreaming of treating itching will soon get rid of the current predicament.
Dreaming that someone scratched himself indicates that he will get sick and will be sick for a long time.
Dreaming that you are tickling others means that you will lose a lot of meaningful things because of vanity.
Dreaming that you are scratching indicates that you will do something wrong.