The most common substances incriminated in the development of this type of dermatitis are chemical irritants: acetone, alcohol, Latex, Sodium laureate sulfate (commonly used in the preparation of cosmetic creams), alkali (strong soaps, particularly those preparations containing caustic soda in the house).
2.
Allergic contact dermatitis
Appears on a specific field, characterized by atrophy and other allergies. Although less common than irritating contact dermatitis, allergic dermatitis is considered the most common reaction of the body immunotoxicity. For this allergic reaction to occur there must be an initial allergen sensitization in which immune cells interact with the organism, increasing their susceptibility to future contacts. Symptoms of allergic dermatitis are similar to that of irritating, but there are important components of the system: reactions urticarial, more extensive rash, swelling, redness and itching can be intense. Although such reactions may occur anywhere on the body, most often they are located on the face, lips, eyelids, ears, neck and décolleté area (they are induced purely cosmetic).
Substances
Substances incriminated in the development of this type of allergy are: nickel (present in jewelry), neomycin (an antibiotic and an ingredient in cosmetic products, deodorants, antibacterial creams and ointments), formaldehyde (cosmetic ingredient), cobalt chloride (from hair dyes, antiperspirants), quaternium 15 (chemicals present in shampoos, creams with sun protection factor, nail varnish).
Time passing from contact allergy to local symptoms and signs can vary greatly and depend on each person's sensitivity to some but the nature irritating agent. If it is strong substances such as perfumes, and reactions can occur within minutes or hours after contact. In most cases, however, is a longer period, sometimes days or months of repeated daily contact. There are cases, not fewer, in which the allergic reaction started a few years the use of that product.
Causes of cosmetic allergy
The two types of contact dermatitis have different causes and mechanisms that occur. Irritant contact dermatitis due to local injury, direct, induced hazardous substances on superficial layers of skin. Symptoms of irritant dermatitis are also framed in cosmetic allergies. Allergic dermatitis usually appears within the body's response against an antigen in contact with who was sensitized before.
Cosmetic-induced dermatitis usually occurs because the application of body care products, scalps and face, and are located within the area covered by the product. Allergies can occur at a distance, if they contaminate other areas. For example, localized allergic reactions may occur in the eyelid due to local contamination with acetone used to remove nail polish.
Frequency of cosmetic allergy
Severe cosmetic allergies are rare, but the small and medium may occur quite often. Studies suggest that over 10% of the population had an episode of skin allergy to a cosmetic product, as a result of inappropriate ingredients in its composition. Allergic reactions are typical (or more frequently) women because they tend to certainly use many more cosmetic than men.
Cosmetic allergies can be present in very different clinical forms:
1. Pruritic areas - Local itching can sometimes be the first and only sign of allergy. It is located both on the area came into contact with allergens and around them.
2. Erythematic local - Is one of the simplest manifestations of allergy appeared only reddened area. Dimensions are variable depending on the particular area and aggression allergen, but there skin texture changes. In typical fashion, erythematic disappears finger pressure (finger pressing on the area).
3. Eczematide - Red boards are in the form of fine scaling covered rodent that are located within a limited area of the body (but may be diffuse and scattered on the trunk). Not pruritic but not very suggestive that a product is aggressive towards the skin.
4. Eczema - There are many forms of eczema: acute, chronic and intermediate. Acute eczema occurs after repeated application (3-4 times in a row) of a cosmetic product on the skin did not tolerate it. Are local itching, redness, swelling and formation of small vesicles area. If the product is removed and aggression is stopped, the skin heal itself in a few days forming is a scab that will fall, leaving the skin intact and no scar or pigmentation squeal. But if the product is still applicable, eczema worsens and increases in size. Chronic eczema is not blistering, is a dry area, cracks, intense itching and can be complicated by local lichenification.
5. Hives - Is characterized by the appearance of small spots, red, raised, intensely itchy, located throughout the body or solely to the contact between cosmetic and skin. Hives may disappear spontaneously within a few hours or can extend alarmed very patient.
Management cosmetic allergies
If you have an allergy to any cosmetic makeup, shampoo, soap or perfume, specialist would recommend that the first step to completely stop their use. If you're not too sure who is the aggressor, it is safest to remove them all. Then, in time, you can reintroduce, one by one by one. Follow the body's response and the evolution of symptoms during this time. Thus you can determine which product is harmful and that we must avoid. If symptoms do not disappear even after removal of cosmetics, the safest is to a trained specialist in dermatology (or GP) who can advise you about treatment be continued.
Cosmetic allergy diagnosis
Cosmetic allergy diagnosis arises after a careful examination of the eruptions and after a thorough case history. Identification of cosmetic allergy is not easy, so the doctor and patient must have patience and to seek which is the stimulus responsible for triggering symptoms.
Amanita have centered on questions about care products used and the relationship between them and the time of the eruptions: can it introduced a new product, can the product used was old and degraded. Also, location is very important to investigate signs of allergy in relation to potentially harmful type of product (shampoo, scalp, face makeup, perfume-cleavage).
As adults many cosmetic use is difficult to be eliminated and which not. Sometimes identifying the product to achieve doctor can use a particular dermatological tested "Patch test" when the skin is placed in contact with various substances frequently involved in skin allergies and see if allergic reaction occurs in any of the substances tested.
Cosmetic allergy treatment
Cosmetic allergy treatment often involves preventive measures and only if the rash is important and specialized treatment is recommended. Preventive measures include avoiding contact with the substance triggers (triggers). Treatment is determined by a dermatologist, after examining the skin and the patient's medical history.
May apply locally based creams and ointments cortisone, hydrocortisone and hydrocortisone acetate to reduce purity, swelling and redness. If vesicles are high infection (a possible complication because there is fluid content) can be given a form of local antibiotic ointment. Aggressive treatment is proportional to the intensity of symptoms and type of dermatitis.
In case of allergic dermatitis may require systemic treatment and to avoid such episodes. Whatever the treatment of choice for control and relief of symptoms is essential that the trigger to be deleted. If it is preserved and the patient comes in contact with him, the treatment was efficient however, has applied in vain, because local changes in symptoms and will recover. Cosmetics market is much diversified and it is not difficult to replace one product with another allergenic safer.
Note!
Whatever type of contact dermatitis, there is a desensitization method that allows contact with the product then responsible for allergy. Safest way to avoid such inconvenience is completely and permanently avoids the allergen, once he was identified.
Cosmetic allergy prevention
Experts recommend us more practical ways to avoid contact with allergens and cosmetic substances unsuitable.
Most useful are:
1. Carefully consult the list of ingredients of cosmetic products that interest you and you want to buy. If you identify a compound that we know as the allergen in your case, avoid the product bought. If you have allergies, try to keep track of the triggers that triggered symptoms in the future to avoid contact with them.
2. If you want to try cosmetic November, the safest is to make even your Steam test. Apply a small amount of product (one of the samples is in storage) on the inside of the wrist and wait 24 hours to see if there is a local reaction. It is recommended to proceed as you know you had problems with cosmetics, whether it's hair dye, shampoo, makeup or perfume.
3. Select cosmetic products as simple formulas. The more one ingredient in a product, the more chances of developing allergies are higher. If the product has a limited number of ingredients and still make problems more easily identifiable in the end that is aggressive with your skin.
4. Spray perfume on clothing rather than skin and leave a few minutes for the perfume to dry before you wear those clothes.
5. Buy products labeled as hypoallergenic makeup, no perfume and noncomedogenice. Foundation, blush, mascara and lipstick are very dangerous if you are allergic potential because they are in constant contact with the skin and often a very long time (sometimes even 12 hours if the working day is interminable).
What lies behind the labels of cosmetics?
To avoid any inconvenience related to cosmetic products would be best to study the packaging and labels carefully to know what's. Search if you are interested in the product is frequently incriminated allergens by specialists in causing unpleasant side effects and especially if they are the ones that your body can not tolerate them. Cosmetics contain many ingredients, some active, others considered as excipients. Excipients are added to ensure a certain texture, consistency, color and fragrance of the finished product. The more excipients are fewer, and even the product is less allergenic and safe for you. Generally, the ingredients are listed in descending order of quantity in which they were used. However, not all substances contained are listed in the list. Some perfumes and "secret ingredients" of the manufacturer may be omitted.
Sometimes, even products labeled as "Without perfume" may contain traces of various flavors, to cover the odor of active substances. If the product is marked as having "Natural ingredients" they should be extracted from plants and not to be industrially produced. Products, especially face creams "Noncomedogene" have the advantage that contain ingredients that can not load the skin and closes pores and thus does not give rise comedowns (pimples) or worse acne.
Warning!
Although many products are currently marked as hypoallergenic, no legislation to establish what should strictly meet the product to be framed in hypoallergenic cosmetics category. Hypoallergenic products are those which have a lower risk compared with other products in the same category, to be involved in causing allergic reactions. Manufacturers are still required to demonstrate that their product is truly hypoallergenic, so sometimes the packaging can be misleading. It should also be noted that organic products are free of allergens and the risk that, in general, any cosmetic product is not 100% sure.
Useful Tips
Beauty Links, Especially the ladies, to avoid injuries:
- Be very careful with your skin and wash carefully before applying any makeup;
- Shared not use makeup, be sure to always have your own kit;
- Try new products that you want to buy directly in the store. Always use a new applicator;
- Close the lid carefully the products they use, and make sure that the bottles or vials was not dirty;
- Keep your cosmetics away from sunlight and not exposed to high temperatures;
- Do not use makeup and cleansing products if you eye infections especially conjunctivitis. Take old applicators infectious complications occur;
- May Avoid using products that have changed color, smell or consistency. Any changes may be suggestive of a potential bacterial contamination;
- Do not try to restore consistency of products by adding tap water, hydrogen peroxide or alcohol;
- Clean makeup applicators and powered toothbrushes for regular periods, but more frequently.
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