Is it possible for you to loose an allergy to penicillin within two months of having an anaphylactic shock?

It's unlikely to lose a penicillin allergy, especially after experiencing anaphylaxis, which indicates a severe and immediate immune response. Allergies can sometimes change over time, but this typically occurs over a longer period and is not predictable. If there are questions about the status of a penicillin allergy, it's essential to consult an allergist for appropriate testing and evaluation.