Make sure you can qualify for a First Class Airman’s Medical Certificate.

If you are serious about a career as a commercial pilot, you must first make sure that you are in a position to pass a first class medical.  The medical is performed by an Aeromedical Examiner (AME). You can find an AME near you at http://faa.gov/pilots/amelocator . Once you have found an AME you can complete the initial portion of the application at http://medxpress.faa.gov (FAA MedXpress).  Note: Please ensure your name on your medical certificate matches your drivers license exactly.

Important Medical Note: certain medical conditions and medications are disqualifying. Please educate yourself to ensure you do not have a medical condition, psychiatric disorder, or take medication that could render you unable to earn a First Class Medical (required to be an airline pilot). Ref: FAA Disqualifying Conditions; FAA Disqualifying Medications; AOPA Medical Resources.

 

More here: https://www.slingpilotacademy.com/prerequisites/