Many people hate summer for the simple reason that they sweat and mosquitoes. Sweating can be controlled by themselves, but mosquitoes are not easy to handle. It buzzes around you, waiting to suck your blood. The most hateful thing is that when it flaps its wings and flies away, it also leaves marks on its skin-itchy red envelopes.
There are ways to reduce swelling and relieve itching.
Cold compress is the simplest and easiest
Whether it is cold water flushing or ice application, it will help relieve local swelling and pain. It should be noted that during the washing process, the movements should be gentle and do not break the red envelope.
Antiallergic drugs are effective
If it is persistent redness and itching, ointment containing hormone (0.5 ~ 2.5% hydrocortisone) or antihistamine can be applied locally to reduce skin inflammation and relieve itching. If the skin is inherently susceptible to allergy or itching, oral antihistamines, such as loratadine, cetirizine and other tablets, can also be selected.
What if the skin is scratched?
If the ulceration area is small and there is no obvious hemorrhage, it can be wiped and disinfected at home with Aneriodine, then a Band-Aid can be pasted and kept dry. If the rupture continues to be red, swollen and itchy, you should seek medical treatment in time.
You know, skin infections are no laughing matter.
Choose all kinds of tricks at your discretion.
People have accumulated countless valuable experiences in fighting mosquitoes and formed various life tricks. Some choose toilet water, mint cream and white flower oil, while others choose calamine lotion or [Haitao] Lithospermum cream.
Are these products effective?
Is it really effective?
In fact, applying the above liquid or ointment to mosquito bites can relieve skin and partially relieve itching in many cases.
1. The following methods can be tried
- Toilet water: Flower dew oil is used as the main perfume and is made with alcohol. Alcohol will take away some heat when local skin evaporates, thus creating a cool feeling. In addition, most common toilet water in the market has been added with mosquito repellent ingredients and has mosquito repellent effect. Calamine lotion: It can be bought in pharmacies and has the effects of astringency, detumescence and skin protection, which is helpful to relieve itching. Mint Ointment, White Flower Oil, Lithospermum Cream, etc.: This kind of medicine is equivalent to [cooling oil] and can relieve itching or pain caused by mosquito bites. Special reminder, Lithospermum Cream is forbidden to be used with caution in damaged skin, infants, pregnant women and people with liver insufficiency. The applicable age of this medicine is over 2 years old.
Is folk prescription useful?
- Saliva: Some people recommend smearing saliva on red and swollen areas. In fact, saliva has little effect on fighting red and swollen areas. Watermelon rind: Some people use watermelon rind wiping to relieve itching, which may only be due to the local cooling effect. Toothpaste: Some people like to apply toothpaste, which is also related to its cool ingredients. Saline water, soapy water, washing powder water: Some people choose to apply saline water, soap or washing powder water, which may be related to its effect of contracting local skin blood vessels, thus helping to relieve itching.
In short, most of the skin red envelopes after mosquito bites are limited and fade away within a few days. Therefore, the previous [harmless] tricks may be considered to have played a magic role.
3. Mash aspirin and apply it, not recommended.
The main component of aspirin is acetylsalicylic acid, which has certain keratinization promotion and antipruritic effects on skin at low concentration. At high concentration, it can cause skin tingling and itching. Therefore, it is not recommended to apply this medicine locally.
Why is it especially itchy when mosquitoes bite?
In fact, of the thousands of mosquitoes, only a few hundred will bite humans.
To be precise, the word “bite” is not used properly. It will only “bite”-piercing a needle-like mouthpiece into the skin.
In order to facilitate blood intake, mosquitoes inject saliva through separate pipes in their mouthparts, which contain anticoagulants that can prevent blood from coagulating. There is no doubt that this anticoagulant is an exogenous substance, and the body’s immune system immediately senses an invasion of foreign enemies, and the immediate response is to activate the protection mechanism to eliminate it.
[Histamine] is the culprit
Some studies have found that the skin can show signs of redness and swelling 6 seconds after mosquito bites.
It turns out that when the skin comes into contact with mosquito saliva, the immune system will [notify] an immune cell called [mast cells] and release a chemical called [histamine]. Histamine can cause local capillary dilatation, increase blood flow and turn red on the skin. At the same time, the permeability of blood vessels increases and liquid leaks into tissues, resulting in red swelling of the skin.
Unfortunately, the immune system sometimes overreacts. Excessive histamine release can be harmful because it is a classic itching medium in the body, which can stimulate nerve endings in the skin and cause itching.
However, just like some people are flushed after drinking a little wine and rash after eating a mouthful of seafood, some people have especially strong skin reactions after being bitten by mosquitoes, such as large red envelopes, severe swelling and itching, which are also determined by individual differences.
How to repel mosquitoes is enough?
There are many ways to repel mosquitoes, the most economical of which is [mosquito nets].
However, [chemical weapons] are the best in dealing with mosquitoes, such as various mosquito-repellent incense and mosquito repellent.
It should be noted that when applying mosquito repellent on the skin, you should not touch wounds, eyes and mouth. When returning indoors from the outside, it is recommended to clean off the mosquito repellent on the skin with soapy water. If the skin is allergic to a certain mosquito repellent, you should stop using it.
1. Mosquito repellent, mosquito repellent effect depends on concentration
Mosquito repellent products that can be smeared on skin are mainly DEET, mosquito repellent ester (also known as BAAPE), Picaridin (also known as KBR3023) and active ingredients of lemon eucalyptus leaf oil.
When purchasing mosquito repellent products, please pay attention to check the product instructions to see if they contain the above ingredients. Generally speaking, the higher the concentration of mosquito repellent effective ingredients, the better the mosquito repellent effect. For example, the mosquito repellent containing 23.8% DEET can work for up to 5 hours.
2. Mosquito repellent bracelet is uneconomical
Mosquito repellent bracelets or stickers popular in recent years are expensive. However, the reason why they are effective is that they are smeared with mosquito repellent. In other words, it is still mosquito repellent that really produces mosquito repellent effect, not good-looking bracelets. From the perspective of economic rationality, mosquito repellent bracelets are sorry for wallets.
3. [Plant Mosquito Repellent] Unreliable
There is a list of mosquito repellent plants circulating on the Internet: