This is a real reason why you should not scratch the rash

We all listened when liba “Don’t scratch you worse”The field is easy to say this when you are not the person you look, huh? But the reality is that when they tell us, they are right in the world. Nevertheless, we also know that a scratch of eruption in the skin gives us a great feeling of relief and Itching reductionThe field if we retained this effect for something, right? This is a paradox that attracted the attention of many scientists, but so far none of their explanations seemed as accurate as a group of researchers from researchers from researchers Pittsburgh University.

They conducted a study with mice. It is important to clarify this before moving forward, because I am not 100% sure that they are extrapolated results for people. Nevertheless, the results provide a good solution for the paradox of itching and scratches, so it should be studied in this line.

When they tell us that “do not scratch, that this is worse,” they usually refer to what you can do Wound. Or it can even be a scar. We are a lot, who has some kind of scar on the body, because we ignored our mother when he insisted that the chickenpox had passed. These scientists have discovered is that there are other reasons beyond the wounds why scratches with a feeling of itching can be harmfulThe field but they also discovered this benefit, for which we evolutionarily retained this evil vice.

If this is not always healed, and if it gives pleasure, it is not always good

It is often said that when something brief in the wound is because it disinfects very well. It was a very rooted belief, but it is more than denial. For example, today it is known that the use of hydrogen peroxide or alcohol in wounds is not a good idea. Yes, this is disinfection with chlorhexidine. The first brief review, the second is almost nothing. This is very well explained by Dr. Esther Samper in her book If this is healing.

As for pleasure, it is true that this is usually connected with something useful. Pleasure is usually the result Release of dopamine In response to the incentive that is interested in our brain. For example, sex is pleasant because it helps us to perpetuate the view. The more sex we have, the better. The same thing happens when we eat chocolate. This gives us a lot of energy, which is evolutionarily useful. But, of course, it is also true that the use of three chocolate cakes per day is quite harmful to health. The authors of the study, which has just been published, believe that the same thing happens with itching and scratch. When we scratch ourselves, we not only alleviate itching. We also feel some pleasure. This should mean that this has a certain benefit for us. But what? This was completely unknown, but in the end it seems that we are closer to the answer.

Chorus and itching

To conduct this study, authors Three groups of mice. Those from the first and second group could usually feel itching, but those from the second group could not scratch, since they were placed in a small Elizabethan necklace. As for those from the third group, they could not even feel itching, since they lacked a significant type of neurons for this.

Everyone contacted the ears with some substances that are known Allergic dermatitis contact as expected, in all groups it was noticed that some Inflammatory immune cells known as Neutrophils However, only those of the first group scratched each other. Those from the second attempt, but they could not, and those of the third group were not even going to scratch. But in the second and third group there was something else that attracted their attention. And yes, neutrophils pierced, but much less than in the group that scratched.

When studying three cases, researchers found the cause of these differences. And this is the fact that the mice that were scratched, the simple fact of the scratch caused a liberal of the connection, known as Substances sThis is capable of this Activate fat cells, which are cells with a very important role in the inflammatory reaction of the immune system, since they are responsible for Find neutrophils And send them to the affected area.

But the substance p is not the only one that activates the fat cells. Also allergens that cause itchingTherefore, what happened to the first group was that they had more neutrophils, because they were achieved in two ways. To begin with, through the fat cells activated by allergens, and, in addition, by releasing the substance p, when they were scratched. In the second and third group, on the other hand, they had only neutrophils from the response to the antigen itself.

Before you move on, we must remember why this is bad for Excessive inflammatory answer. And, in reality, inflammation, to his justice, is useful. This is an important component of the immune response, with which our body protects us from Possible threats. However, when excessive and sustainable inflammation is observed in time, it ceases to be an attack only for threats and becomes an attack for itself. It is often compared with the immune system with the army that protects us from attacks. If this army was riding on horses, inflammation would be the earth, remote helmets of their legs. A small displaced soil is not a bad thing, but if it is, too, the area is destroyed. Our body in this case is land, so inflammation should occur until its fair measure.

Do not scratch you, which is worse … almost always

We have already seen that if we are scratched, the inflammatory answer can be excessive. This, the boat soon, is bad. However, fat cells not only appear in response to allergies. They are also part of a protective response against Pathogens. Therefore, the authors of this study believed that this positive part of the scratch could be associated with it.

Proved the analysis of the skin cells that scratch, and those who did not do this and observed that the scratch led to an attack on Staphylococcus aureusA bacterium that can cause skin diseases.

Therefore, scratching itching, when it is localized itching, it can be useful, since it helps to eliminate bacteria. However, if it is chronic itching, the time comes when the benefits do not compensate for the risks. There is a response to the paradox. The next time they tell you not to scratch you, which is worse, explain what your motives are. But do not go through. So it will be worse. And do not get injuries!