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1. to scrape or rub a surface lightly with the nails or with a sharp or jagged instrument, particularly to relieve itching.
2. a slight wound.
3. to make shallow cuts on a surface.
4. to make a thin grating sound.


(skrach) [ME. cracchen, to scratch]
1. A mark or superficial injury produced by scraping with the nails on a rough surface.
2. To make a thin, shallow cut with a sharp instrument.
3. To rub the skin, esp. with the fingernails, to relieve itching. Scratching temporarily relieves itching by soothing the cutaneous nerves, but in the long run, it may worsen the condition that caused the itching. See: pruritus

Patient discussion about scratch

Q. why do allergy effects comes usually in sorts of sneezing and scratching and more other thing like that?

A. It's because the substances released in the allergic reaction of the immune system to the allergen, like histamine, cause sensation of itching. They also cause increased secretion of mucus from the lining of the throat, which irritates the airway and cause sneezing.

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Q. Is there any information out there regarding a severe allergy to cat scratches? Is there any information out there regarding a severe allergy to cat scratches? I am not referring to "cat scratch fever" disease, but an allergy where the site of the scratch becomes swollen and red, and the person has hives and trouble breathing. Thanks so much!

A. Greetings Humble Earthling! It sounds like you have two or more things going on. First, cat scratch fever is caused by a parasite and comes on 1 to 2 weeks after the scratch. Allergic reactions are immediate.
Now, if the site of the scratch is swollen and red, that could be due to minor infection and just the process of healing.

More discussions about scratch
References in classic literature ?
It's a weight off my mind," says the trooper with a heave of his chest as he unfolds his arms and puts a hand on each leg, "though I had set my heart on being scratched, too
I have a solid smoked glass table top which has been heavily scratched.
My husband and I started treating our newly scratched floors with Scratch and now we have no more visible scratches.
To determine onset of scratch visibility, scratched surfaces of PP-system and PC-system were scanned using an EPSON GT-X970 Photo PC scanner at a resolution of 3200 X 3200 dpi in 8-bit grayscale level.
A"Prurigo" describes the changes that appear in the skin after it has itched and been scratched for a long time.
To experimentally detect the critical load of coating debonding, three different methods were chosen: (1) direct visual observation, (2) exposure of the scratched samples to oxidative liquid, and (3) laser confocal scanning microscopy (LSCM) examination of surface profile changes.
Each Salik scratch card has a secret code to be scratched by the client for crediting the Salik account.
I am sure, after all, that each of these groups gets scratched, but none of them will have to endure the kind of devastating scratch that only a cat with talon-like nails and deeply mischievous intent can inflict.
James Spinks, co-founder of Birmingham-based Scratch Wizards, has secured a deal to repair scratched car bodywork at Arnold Clark dealerships at Oldbury and West Bromwich.
Gesturing of this type frequently occurs during social grooming, causing the provider to shift his activities to where the recipient scratched himself.
With Scratch Guard Coat a car's scratched surface will return to its original state anywhere from one day to a week, depending on temperature and the depth of the scratch, according to the company.
The paint, called the ''Scratch Guard Coat,'' enables a scratched surface to return to its original state on its own, with the process taking one to seven days depending on temperatures and the scratch's depth, it said.