How To Treat Pimple Like Itchy Bump All Over The Lips Caused After Eating Mangoes?

Hi, I'm 16 years old and I really need an answer asap please. Last Sunday on the day of the World Cup I ate one mango(without the skin, I cut it off), then around midnight I got a pimple size bump on my lower lip. On Monday, I started to see that I had little bumps all over my lips. Today its worse, there is a sort of puss coming out of the pimple size bump and there are more smaller bumps, its irritating, its itchy at times, and my lips are chapped right now. Am I allergic to mango or is it something else???