这里有个医生写的Blog：Do you really have a penicillin allergy?

https://www.health.harvard.edu/blog/do-you-really-have-a-penicillin-allergy-2019022616017#app

“But just because you were told you had a penicillin allergy, or had one in the past, does not mean you have one now. People with a penicillin allergy history have their allergy disproved with allergy testing more than 90% of the time.”