Why are some people allergic to penicillin but not to cephalosporin?

This is because the main allergic mechanisms are different. Penicillin allergy is because it opens the ring: from this to this:

After ring opening, penicillium thiazole is formed, which binds to protein polypeptides to produce penicillium thiazole protein, which is the main epitope; After ring opening, penicillium thiazole is formed, which is combined with protein polypeptides to form penicillium thiazole protein, which is the main antigenic determinant; The rings of cephalosporin are very stable, and the allergy is mainly due to the R1 side chain: to put it simply, the main cause of penicillin allergy is that the mouth is opened to eat the protein, so it dies!

To put it simply, the main reason for penicillin allergy is that you open your mouth and eat protein, so you die! Cephalosporin allergy is because the R1 side chain attracts bees and butterflies, so he dies! So if you are allergic to penicillin, you may not be allergic to cephalosporin, because cephalosporin will not open your mouth!!

However, there is also a secondary epitope, which is a mechanism of partial cross-allergies. <>

Cephalosporins and penicillins have cross-allergies, but they are not necessarily allergic, so in order to avoid the possibility of crossing, it is best to choose non-cross-crossing species. However, clinical medicine doctors have a great deal of autonomy and experience, and doctors often do not implement the principles written in the textbooks. So experience is something you have to accumulate rather than learn from books.

This is the truth.233 According to our teacher, the allergy to penicillin is mainly due to the problem of purification technology, and the allergy to impurities other than penicillin in penicillin preparations. Consideration may be given to avoiding cephalosporin as much as possible. Although, the chance of a true cross-allergic reaction leading to shock is around 5-10%.

But to be sure, doctors should avoid giving cephalosporin to patients with a history of anaphylactic shock. <>

Categories: Healthcare.

Problem description: The doctor prescribed me "cefuroxime ester capsules", I didn't look at it carefully, but when I went home, I carefully read the instructions and found that it said "cephalosporin antibiotics and penicillin drugs have cross-reactivity reports, so patients who are allergic to penicillins and have destroyed holes should be used with caution". I had not taken penicillin before, but I had a skin test of penicillin and had an allergic reaction. I want to ask, don't I mean that I can take this drug?

Analysis: The so-called cross-allergic reaction means that penicillin allergy but cephalocytic drugs are not necessarily allergic and general cephalophytic allergic reactions are very mild unless it is a person with a specific constitution, so people who are allergic to penicillin can also take cephalocytic drugs Add a sentence I am a young doctor who has been practicing medicine for seven years.

Banana peels contain bananaquin, which inhibits the growth of bacteria and fungi. Experiments have proved that the itching and beriberi caused by fungi or bacteria caused by banana peels are very effective. Patients can select fresh banana peels and rub them repeatedly on the itchy part or mash them into a puree, or decoction and washing, and use them for several days, which can be effective.

Think about what you can and can't eat and make sure you eat a balanced diet. If it is not clear, you can stop eating it and judge whether the symptoms are relieved. You can also go to the hospital for an allergy test.

You can use Yu Min cream**, and it should be noted that you should not eat spicy food, supplement more vitamins, eat more fruits, relax your mind, and don't be stressed.

Wishing you good health!

Hello, many drugs may be triggered, such as amoxicillin capsules or cephalosporin antibiotics, there is a possibility of allergies, and you must follow the doctor's advice before taking it.

DiseaseSituational analysis:Hello, your case is considered to be allergic, mostly because of the imbalance of water and oil balance in the skin, and the decline of metabolic ability.

Guidance:Generally, ** is the first choice for allergies, such as Yu Min cream, the effect is more in-depth, to remove the abnormal **, long-term use will achieve a certain ** effect.

It's easy to find products that are prone to allergies, such as when you start using a new skincare product

There is also a possibility that the allergy problem is not caused by one product, but by the use of multiple products together. The key to avoiding allergies is to be patient and diligent in using products that may cause allergies

It has a lot to do with metabolism, ** when you can choose Yu Min cream, it is from the skin metabolism to regulate the immune balance of the skin, so that the skin can achieve normal metabolism, so that the hair follicles become unobstructed

Problem analysis: Hello, according to your description, it may be **allergies, which are related to exposure to certain allergenic substances (such as certain chemical ingredients in skin care products), allergies to certain foods, insect bites, **decreased resistance to dryness, etc.

Suggestions: It is recommended to find and remove**, if necessary, oral anti-allergy drugs**, avoid scratching, so as not to leave scars, use mild cleanser and Yu Min cream care on weekdays**, **eat less spicy during the period.

Hello, also allergic to cephalosporins and other penicillins.

.Take good sun protection measures, do not accept massage, sauna and other beauty programs that promote blood circulation, and eat less greasy and spicy foods and more vegetables and fruits. Foods that reduce ** oil include green vegetables, tomatoes, fruits, green tea, etc., and foods that help fight infection include winter melon, red beans and mung beans.

In addition, you should relieve tension, keep your stool smooth, and do not use cosmetics that contain too high ingredients or hormones.

**: Eat collagen-containing foods: such as drinking more collagen-rich bone broth, oral collagen supplements, etc.

Allergies are very lacking in oil and water**, and you should also use a very moisturizing cleaning product when bathing. Another important point is to keep the temperature of the water in the bath about 5 degrees Celsius on par with your body temperature. In winter, many people like to use hot water, which is comfortable enough.

But the hot water will wash away the oil of the ** too much; As soon as the body leaves the hot water, the water on the surface will evaporate immediately, and at the same time, it will also take away the water. This is a "worse thing" for allergies. Yu Min cream is also a good way to improve allergies.

Even if you have allergies, don't worry, maintenance is very important for women, if women can do a good job of daily maintenance, and with professional allergy products, it is not difficult to eliminate allergies at all, what are you waiting for, hurry up and take action, and strive to be a heartthrob who is loved by everyone.