Answer:
People who are allergic to penicillin can experience allergic reactions in different ways. Some examples of an allergic reaction to penicillin can include:
-hives
-rash
-itchy skin
-wheezing
-swelling of the lips, tongue, or face
The most serious allergic reaction to penicillin is an anaphylactic response, which can be life-threatening. Anaphylactic reactions develop immediately after penicillin exposure in highly sensitive people. Anaphylactic reactions cause the airways to constrict and lower blood pressure. Signs and symptoms include:
-constriction of the airways
-shock associated with a marked decrease in blood pressure
-weak and rapid pulse
-hives and itching
-dizziness or fainting
-flushed or pale skin
-nausea, vomiting, or diarrhea