I'm 74 and have been taking 200 mg of bupropion daily for 3 weeks. The last 2 weeks my lips are burning, they look extremely chapped and I have small blisters that pop up. It's really hard to eat anything but I'm drinking a lot of water , smoothies etc. Is this an allergic reaction maybe ? Outside of my lips hurting , it's also embarrassing. They are that red and not chapped exactly but the redness spreads beyond my lips. Hard to describe.