I woke up this morning with my right side of my face swollen and went to urgent care they said I had an allergic reaction to lisinopril my blood pressure medication. I've been taking in for two years and never had a reaction. I recently started hailey birth control pills for about 2 weeks which is the only change in medication. I had chinese food last night which I always get the same meal for the past year. I'm confused and would like to know is it a possibility it's the birth control that's causing an allergic reaction? Also my right foot is also swollen and hurts when I walk on it.