scratch

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scratch

(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.

You may read more here:
en.wikipedia.org/wiki/Histamine

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 periodicals archive ?
It sustainsminor scratches at level 6 and deeper ones at level 7 of the Mohs' scale.
Usually, the remedy would be to replace your screen or add a durable screen protector to avoid the small scratches, but if for some reason you have missed out on those two options, here are a few tricks that may help remove scratches.
The iGloss technology not only repairs minor scratches, it also offers increased scratch and weathering resistance.
We don't have a "Mewsetta" stone to tell us what a cat's scratches mean, but experts have some theories.
A (http://wwwnc.cdc.gov/eid/article/22/10/16-0115_article) study  conducted by doctors from the Centers for Disease Control (CDC) proved cat-scratch disease, an infection with Bartonella bacteria that is believed to be transmitted by cat scratches and bites, is actually more impactful and deadly than what was originally assumed.
The microscratch tests were performed according to ASTM D7027 "Standard Test Method for Evaluation of Scratch Resistance of Polymeric Coatings and Plastics using an Instrumented Scratch Machine." The scratch machine used for this purpose was a Micro Combi Tester (CSM Instruments, Peseaux, Switzerland) equipped with an optical microscope (i) allowing indenter positioning before scratch tests pass and (ii) to visualize scratches traced.
Until the creation of the Scratch-B-Gone kit and process, consumers and professionals were told by experts that it was impossible to remove the scratches because the resulting “bright spot” was often worse than the scratch or blemish.
DIY expert Donny Sheridan answers your problems QWHERE can I buy the product you mentioned that helps erase marks and scratches from a glass table?
DDEEAARR Donny DIY expert Donny Sheridan answers your problems QWHERE can I buy the product you mentioned that helps erase marks and scratches from a glass table?
Shoulder heights and scratch depths measured for three scratches at the same location are reported in this study to obtain mean value and standard deviation.
Harald Nyberg, Sara Alfredsson, Sture Hogmark and Staffan Jacobson at Uppsala University in Sweden, who usually study friction and wear in technical and industrial material systems, described in their article that the curved path is due to the microscopic roughness of the stone producing microscopic scratches in the ice sheet.
Most often when you park your car, when you return there will be a number of little scratches and dents on it, whether it's people not taking care when opening their doors, or people trying to squeeze past with bags etc.