Why does the skin bump up when you scratch it

When the skin is raised when scratched, consider skin scratching, also known as artificial urticaria, a relatively common skin disease. The pathogenesis is unclear and may be related to the release of vasoactive drugs from mast cells in the patient’s body, leaving the skin in a highly sensitive state where smaller stimuli may cause a stronger reaction, such as after wearing excessively tight clothing, bumping, or taking certain medications. Typical symptoms are linear, raised, pale scratches on the skin, whose edges appear as raised lines of congestion and are accompanied by intense itching. In terms of treatment, patients can take oral antihistamines under the guidance of a physician, along with topical anti-itch medications. While taking antihistamines, attention should be paid to the side effects of the drugs, such as dizziness, weakness, drowsiness, etc. Work at height and driving vehicles should be avoided after medication. In daily life, patients can wear looser outerwear and well-fitting underwear to avoid over-tightening or irritation of clothing, which can cause recurrent attacks. The wind mass can be left untouched after it subsides.