Doctor, I am allergic to penicillin: Is this dangerous?

Doctor, I am allergic to penicillin: Is this dangerous? Ann Allergy Asthma Immunol. 2020 Feb 07;: Authors: Solensky R PMID: 32044454 [PubMed - as supplied by publisher]
Source: Annals of Allergy, Asthma and Immunology - Category: Allergy & Immunology Authors: Tags: Ann Allergy Asthma Immunol Source Type: research