When we have an annoying itch, we all have the urge to scratch. Scratching feels good even though it causes slight pain. In fact, scratching can cause some damage to the skin. Some itches should be avoided.
A study published in the journal Neuron found that scratching helps the brain release the neurotransmitter serotonin to control the pain caused by scratching. Increased serotonin release can sometimes increase the feeling of itching, according to the health website Medical News Today (UK).
Dry skin is a common cause of itchy skin and sufferers should limit scratching.
Although scratching feels enjoyable and pleasant, people should avoid scratching if they experience the following conditions:
Dry skin
Dry skin is one of the most common causes of itchy skin. It occurs when the stratum corneum of the skin becomes dry. Dry skin is more likely to occur in people who are deficient in ceramides, lipids that act as the skin's outermost barrier.
Dry skin causes itching and stimulates scratching. Scratching can cause further damage to damaged skin. Scratches on the skin can become infected. Chemicals in some cleaning products can penetrate the skin through scratches and cause allergies. To reduce itching and dry skin, people should apply ointments or moisturizers to maintain skin moisture.
The wound is almost healed.
As the wound heals, itching begins. This is because the skin injury has damaged the nerves. As the nerves regenerate, they will have points of intersection, causing irritation and itching. Scratching will slow the healing of the wound, even causing scarring. To reduce itching, people can use cooling creams containing peppermint oil.
Sunburn
Not using sunscreen when swimming or being exposed to the sun for a long time will lead to sunburn. After the burning sensation passes, the sunburn will begin to heal and become itchy.
People should avoid scratching because scratching will break the skin, slow the healing process, and bacteria on the nails can even cause infection. Good ways to relieve itching in this case are to apply cool compresses, aloe vera gel or cortisone cream to reduce inflammation.
Psoriasis
Psoriasis occurs when the immune system becomes overactive and attacks healthy skin cells. Symptoms include itchy, red, flaky skin. People with psoriasis should also avoid scratching. Moisturizers and prescription medications can help relieve itching, according to Medical News Today.
Source: https://thanhnien.vn/4-kieu-vet-ngua-nen-tranh-gai-18525012416223663.htm
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