You need a medical card.
Yes
You need to have a doctor sign a document that states that you have a qualifying condition and fill in paperwork that you can get on the Illinois govt website. Along with that you need a picture and fingerprints although I've heard that Illinois is going to do away with the fingerprinting requirement. After sending this all in to the state at this time it takes anywhere from 8 to 12 weeks as they are pretty backlogged.
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