■Allergens are ubiquitous
The allergens discovered so far cover almost everything in life:
Foreign proteins: fish and shrimp, eggs, milk, peanuts, shellfish, beef and lamb.
Vegetables and fruits: nuts including cashews, pistachios and walnuts, southern fruits such as mangoes can cause discomfort for some northerners, and some vegetables such as celery and coriander.
Dust mites: Allergens are found in the feces or excretions of mites. They can cause perennial rhinitis when inhaled into the nose and asthma attacks when inhaled into the lungs.
Chemical products: acids, alkalis, chromium salts, nickel salts and other compounds. Daily necessities containing aromatic compounds such as detergents, cosmetics, deodorants, and preservatives, antibiotics, red mercury, prickly heat water, bruise cream.
Genetic factors: allergies have no clear gender predisposition, but there is a clear genetic predisposition. Experts say that if one of your mother or father suffers from allergies, your chances of developing allergies are 25 percent. If both parents have allergies, the odds increase to 75 percent.
Others: Pet hair and dander, airborne pollen, grass seeds, mold, fungus, insect stings, and even cockroaches and animal feces can be allergens.
■Allergy Profile GP Search
Allergies are diagnosed from medical history, symptoms and skin tests. Based on your history and symptoms, your doctor will perform appropriate tests in order to determine if you have allergies and what you can be allergic to.
Pharmaceutical Rash
The main signs: erythema, blisters, loose epidermis, itching and pain in the skin, sometimes accompanied by a low-grade fever and malaise. There is no hyperpigmentation after the rash subsides.
Allergens: allergy to Western medicine is more common, such as penicillin, sulfonamide allergy. Certain ingredients in Chinese medicine can also be used as allergens.
Contact dermatitis
Main manifestation: skin contact with a foreign stimulus, local erythema, slightly edematous, mostly itchy and painful, severe blisters, pimples, peeling and other reactions.
Allergens: jewelry, watch chains, mirror frames, sandals, chemical fiber fabrics, topical drugs, chemicals, cosmetics.
Eczema
Main manifestations: local or systemic erythema, papules, blisters, vesicles, oozing, crusting, flaking, hyperpigmentation, burning sensation and intense itching, often aggravated at night and affecting sleep, easy to relapse and tend to chronic.
Allergens: caused by the interaction of external and internal factors. External factors include chemicals, animal toxins, bacterial infections, foreign proteins, internal factors may be their own allergies, coupled with excessive fatigue or mental stress.
Hives
The main manifestation: sudden intense itching or burning sensation of the skin. The affected area quickly appeared limited or pale air masses of varying sizes, but the boundaries are clear, and the damaged area can be expanded and increased with scratching. It lasts for a few hours and then naturally subsides without leaving any traces, and may recur within 1 day.
Allergens: cold, heat, sunlight and other stimuli; insect bites; nettles, lacquer and other plants; fish, shrimp, seafood, mushrooms, sulfonamides, salicylic acid, penicillin, serums, toxins produced by parasites; menstrual disorders, nervousness, fatigue, depression, etc.; family history of heredity.
Ulcerative colitis
Main manifestations: diarrhea, pus and blood stools, abdominal pain, and abdominal pain, the course of the disease is long, the severity of the disease varies, and often recurring episodes.
Allergens: Western medicine point of view is not completely clear, Chinese medicine is believed to be related to the attack of external evils, dietary injuries, emotional and emotional depression, spleen and stomach weakness.
Food allergy
Main manifestations: food allergy manifestations are varied, the most common rashes, mostly in the face, perioral, trunk is also more common, itching and flaking, and there can be hyperpigmentation. Other lip or tongue numbness, mouth ulcers recurring, nausea, vomiting, anorexia, abdominal pain, diarrhea.
Allergens: More than 90% are caused by the following eight types of food: milk, eggs, peanuts, nuts (pecans, cashews, etc.), fish, shellfish, soy and wheat. But sometimes it's not the food itself that causes allergies, but rather disinfectants, preservatives and the like.
Allergic rhinitis
The main performance: paroxysmal continuous sneezing, each attack is usually not less than five, more often even more than a dozen, dozens of, sneezing in the early morning, sleep at night or with the change of seasons aggravated, some people almost every day several episodes. Sneezing is followed by a large amount of watery nasal mucus. Nasal congestion, the severity of which varies with each attack and can last for ten or several minutes. Itching in the throat and itching in the external ear canal. Some are perennial and some are seasonal.
Allergens: pollen, dust mites, willow floss, foods with specific odors, cold air, etc.
Allergic asthma
Main manifestations: the aura manifests itself in an itchy nose, sneezing, tearfulness, and a dry cough, followed by tightness in the chest, chest tightness, shortness of breath, and more sudden wheezing episodes. Because lung function is at its worst at 4 a.m., all symptoms are aggravated at night interfering with sleep. Prone to spring blossom season, fall and winter cold, asthma can be fatal if left untreated.
Allergens: patients often have atopic constitution with allergy to certain substances, triggering factors include inhalation of cold air, pollen, fungi, dust mites, cockroach feces, eating fish, shrimp, milk, and contact with certain drugs, such as penicillin.
Anaphylaxis
Main manifestation: strong systemic allergic reaction, symptoms include local or generalized rash, laryngeal edema, asthma, dyspnea, decreased blood pressure, nausea, vomiting, and in severe cases, convulsions and coma.
Allergens: 50% of anaphylaxis is caused by drugs, the most common is penicillin allergy, most often occurring within 5 minutes after the drug.
■Teach you ten tricks to stay away from allergies
No treatment for allergies, in the allergy season to endure a little will pass, but in the long run will be more and more serious. Paradoxically, anti-allergy drugs are mostly antihistamines and hormones, which not only make people sleepy and tired, but also damage the liver and kidneys, while hormones are more likely to lead to obesity, infections, pigmentation and other problems. In addition, these anti-allergy drugs are mostly effective when used, and once the drug is discontinued, the symptoms will recur and even become more severe.
Since the allergens are chasing us and we have no place to hide, let's have some fun with them.
I. Reduce humidity. Open bathroom or kitchen windows and doors for ventilation during and after cooking, washing and bathing. To prevent it from spreading to the rest of the room, close interior doors. Ventilate bedding before making the bed, and keep windows open in bedrooms whenever possible.
Two, prevent dust buildup. Reduce the use of easy to absorb dust and difficult to clean items, mattresses every two weeks to wash the dust. If possible, change your pillow every three months.
Three, wash bedding in hotter water (at least 60 degrees Celsius) to kill dust mites.
4. Soft toys can hold a lot of dust mites, so buy toys that can be washed in 60C water and scrubbed. Don't put toys on children's beds.
V. Give up carpets. Replace them with polyethylene carpets wherever possible.
VI. Avoid going out in the evening when pollen counts are highest. Sleep with bedroom windows closed to prevent pollen drifting into the room at night. Close windows tightly when driving.
Seven, ditch woven fiber chair and sofa covers for rattan, canvas or leather products that are easy to clean and don't trap dust mites.
VIII. Bathing your pet once a week can reduce indoor allergens by 90 percent. It's not enough to limit a pet's range of motion to one part of the house, where it can get allergens on its own clothes. Families with allergy sufferers are better off without pets.
Nine: Watch out for stress. Stress puts a heavy burden on the immune system, and allergic reactions are more likely to be triggered if you're overworked or stressed. Exercise, meditation, yoga and other stress-reducing techniques can ease the burden of stress on the immune system.
Ten, avoid foods containing artificial colors and preservatives, eat as little sugar as possible, and avoid high oil and calories. You should get enough sleep, drink plenty of water, and eat a well-balanced diet.