It's important not to pick at a scab to avoid infection.
pain
Frequency:
50
%
A scab can cause a painful sensation if touched.
itch
Frequency:
45
%
The itching sensation of a scab can be relieved with proper care.
Idiomatic Expressions for scab
Phrase: to be labeled a scab
Meaning: to be called a traitor or disloyal for working during a strike
Usage: She was labeled a scab by her former coworkers after she decided to work during the strike.