A year after the BP disaster, more people are reporting medical and mental health problems to nonprofits and doctors working in coastal areas. (Get more Gulf oil spill anniversary news.)

"We're seeing patients who will come in and say my nose is bleeding all the time, my cough gets worse," said James Diaz, director of the environmental and occupational health sciences program at Louisiana State University Health Sciences Center in New Orleans.

Itchy eyes, water eyes, nosebleeds, wheezing, sneezing, and coughing are all symptoms of exposure to crude oil, Diaz said. "We are seeing a lot of that.

(Explore a human-body interactive.)

"We know a lot about the acute health effects of the