The latest research by Dr Jumy Olajumoke Fadugba, chief of section of allergy and immunology at Penn Medicine, and colleagues found that pregnant women who report a penicillin allergy can safely undergo penicillin skin testing without worry of adverse effects. The tudy, published in the Annals of Allergy, Asthma & Immunology, suggest that more than 90 percent of patients with reported penicillin allergy can safely undergo the test, though there were unspecified rash (44%), hives (39%), angioedema or facial swelling (4%), shortness of breath (4%), throat symptoms (1%), prolonged gastrointestinal symptoms (< 1%) and dizziness (< 1%). The importance of this finding is that penicillin allergy during pregnancy is associated with cesarean delivery, post-cesarean wound complications and increased hospital stays, despite penicillin being a widely-used antibiotic.