I was in the ER earlier this year for a runaway BP. They told me horror stories about reactions to Lisinopril which I take, not sure that helped my situation any. Said they treat two Lisinopril allergic reactions per week. I am currently on my fifth day of an allergic reaction to an antibiotic containing Sulfa, the drug is called Bactrim I believe?? The allergic reaction is much worse than what the antibiotic is treating which is a bacterial toe infection and is proving much harder to treat the rash from the reaction in a very compromising location. With me the reaction to the Sulfa drug was immediate, I could feel the itching at the site of the reaction. Doctor did ask me if I was allergic to anything to which I replied no. You just never know when a reaction is going to occur and have to remain vigilant to any unusual development, DW was on an allergy medication which drastically lowered her Blood pressure, only knew that because we monitor our pressures routinely. Currently reading "Death BY Prescription" by Ray D. Strand, MD. It happens much more often than you think from common everyday medication. Medications are always a double edged sword! Glad you survived!