Allergic reaction to shrimp. Can I still eat shrimp.

Patient: Want to know if I’m allergic to shrimp/crab? I had some a month ago. What I ate is called “Ceviche” but I didn’t get a allergic reaction until the next morning. I woke up with a swollen eye and rashes on my face. I have always ate shrimp before so wanted to know if I can’t eat it anymore?

Symptoms: Swollen eye, rashes on face