If you are a Louisiana concealed carry permit holder and traveling out of state you will be pleased to know that permits are honored in one way or another in all states except for California, Connecticut, Delaware, District of Columbia, Guam, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York, New York City, Oregon, Puerto Rico, Rhode Island, Virgin Islands, American Samoa, N. Mariana Island.
A comprehensive reciprocity map is available here. As of August 2016, the page is updated and includes recent changes to CCW permit laws and explains the difference between concealed carry recognition and reciprocity.
If you are just getting started, this gun store in West Baton Rouge explains on their blog exactly how to get a concealed carry permit in Louisiana. The Louisiana State Police also have a page on renewing your CCW.
Stay safe out there.