Penicillin skin test

Allergic reactions require an intradermal test before injection to prevent allergic reactions during injection. Allergic reactions require an intradermal test before injection to prevent allergic reactions during injection. Positive: local skin redness (scleredema greater than 1 cm) within 15-30 minutes after injection; or skin rash, itching, dermatitis, combined meningitis, stomatitis, laryngeal edema, nausea, dizziness, palpitations, and even blood pressure drop, in severe cases Irritability, pale complexion, sweating, coma, cyanosis, dyspnea, and even death from convulsions.