Why penicillin should be skin tested

May 8, 2023
Penicillin belongs to a class of antibiotic antibacterial drugs, with the advantages of high efficiency and low toxicity, and is widely used in clinical applications. Before using penicillin, you need to take a skin test needle, so why do you need to do skin test for penicillin?

What is a skin test?

Skin test, also called skin test, is the abbreviation of skin or intradermal sensitivity test, which is the most routine and specific test, clinically based on pricking and intradermal injection, where a small amount of drug is injected into the patient's inner forearm. If the patient is exposed to the drug allergen and has a localized wind mass or redness and itching, it means a positive reaction and the injection cannot be continued and the drug needs to be replaced; if it is negative, it means the test can be continued for that type of drug.

Why do you need to do skin test with penicillin

Penicillin has few side effects on the human body, but penicillin drugs can easily cause allergic reactions, so a skin test allergy test is needed before each use, and only those who have a negative skin test can use penicillin drugs. For different manufacturers of penicillin or oral penicillin before the need to do skin test test.

What are the symptoms of penicillin allergy?

The symptoms of penicillin allergy are rash, urticaria, dermatitis, fever, angioneurotic edema, asthma, anaphylaxis, etc. Serious cases can lead to death. Some small doses of penicillin injection may cause allergic reactions, so after penicillin skin test, you need to observe whether there is an allergic reaction and inform the doctor in time to facilitate the doctor's treatment.

What to do if you have an allergic reaction to penicillin

When doing the skin test, it is best to wait for more than 30 minutes in the hospital. If local red dates and itching appear, you need to inform the doctor in time and change to other antibiotics to treat the body disease; if the allergic symptoms are serious, breathing difficulty or anaphylaxis may occur, you need to go to the hospital for treatment immediately.
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