What? I Could be Allergic to That?! is a casual and fun look at some unusual allergies that people can have! Everyone knows about being allergic to pollen and pets, but did you know that's just the tip of the iceberg? This book contains allergies your doctor may not even know about. When we became allergists and immunologists, we were fascinated by what we were treating every day. Patients were coming in with reactions to the strangest things like water, cold air and even money. We've seen people struggling with symptoms for years without a clear cause, because who would think you could be allergic to yourself? Reach for this book next time you think you're going crazy.