Sentence examples for a scab from inspiring English sources

The phrase "a scab" is correct and usable in written English.
It can be used as a noun or as part of a larger sentence to describe a crusty or hard covering on an injury or wound that is healing. Example 1: The scab on his knee was itchy and he couldn't resist the urge to scratch it. Example 2: The doctor warned her not to pick at the scab on her cut, as it could lead to infection.