Table of contents:
One way to find out the cause of allergies is with a skin allergy test. Not only that, this examination is also carried out to determine appropriate treatment measures and as a preventive measure so that allergic reactions do not occur again
Skin allergy is one of the most common skin disorders, both in adults and children. This type of allergy is generally characterized by itching and skin rashes appear on certain parts of the body.
Allergic skin reactions can occur when people who have allergies come into contact with allergens or allergens, such as dust, soap or detergent, perfume, mites, metal, or animal dander. Allergic skin reactions can also occur due to consumption of certain foods or drinks, side effects of drugs, and changes in weather.
To determine allergy triggers, a skin allergy test can be done. The test results can indicate the type of allergen causing the allergic reaction.
Different Types of Skin Allergy Test
You can undergo allergy testing at a clinic or hospital to determine the cause of the appearance of allergy symptoms or triggers for skin allergies that you are experiencing.
When undergoing a skin allergy test, the doctor will perform a physical examination and advise you to stop taking certain medicines, such as antihistamines and corticosteroids, if you are taking them.
Some types of allergy tests may take a short time, about 20–40 minutes, but some may take longer, up to a few days. The following are some types of skin allergy tests that can be done:
1. Skin prick test
This skin allergy test is carried out by a doctor by placing a substance or object suspected of being an allergy trigger on a small needle, then the needle is inserted into your skin. After that, the doctor will wait for about 15-20 minutes to see if there is an allergic reaction or not.
Skin prick tests are usually painless. In adults, the skin prick test is performed on the forearm, while in children it is on the upper back.
Skin prick test is negative if you do not feel any symptoms after the skin has been exposed to the allergen. However, if you experience itching and a rash and hives appear at the puncture site, you most likely have an allergy to the substance being tested.
2. Patch test
The patch test is a skin allergy test performed to detect an allergic reaction and assess its progress. This skin allergy test is done by placing a patch that has been given an allergen on the arm or back and left for about 48 hours.
During the use of the patch, you are advised not to sweat a lot or to be careful when bathing so that the area of the skin where the patch is applied does not get wet. After 48 hours, the patch will be removed and the doctor will evaluate the area of the skin where the patch was applied the next day.
If you experience itching or rashes and bumps appear on your back or arms, you most likely have an allergic reaction to the substance that was attached.
3. Skin injection test
This allergy test is similar to a skin prick test at first glance, but the difference is in the way it is administered. The skin injection test is done by injecting a liquid containing a substance suspected of being an allergy trigger on the skin on the arm.
Furthermore, the doctor will wait about 20 minutes to see if an allergic reaction occurs. A skin injection test is often done to assess if you have an allergic reaction to drugs, such as antibiotics.
When the allergic reaction subsides, you also need to remember what allergy triggers you feel and as much as possible avoid contact with those allergens.
The appearance of allergy symptoms in every skin allergy sufferer is different. There are those who rarely feel the symptoms of skin allergies, but there are also those whose symptoms appear quite often and interfere with daily activities.
If you experience symptoms that are suspected of being a skin allergy, but do not know what the triggering factor is, you should consult a doctor to undergo a skin allergy test and get the right treatment.