Laws very by state but...
Make sure a first report of injury report was filed. Request a copy, they are legally obligated to give you one.
Sometimes worker's comp injuries are "hidden" (no report filed) when TAW is involved or the time off work is short.
If you return to full duty and then the injury flares up again putting you out, it is important to have a correct date of first injury.
WHY?
In my state you have to be restricted from work a certain number of days before you qualify for wage replacement.
If the same injury flares back up after returning to full duty the clock for qualifying does not start over as if it is a new injury.
Miles driven to and from the doctor are usually compensated at a set rate per mile. Keep records
Parking fees for doctor visits are also usually covered. Keep records.
If worker comp pays 2/3 of your wages (Up to nearly $1,000 a month here) make sure you understand it is 2/3 of the wages you lost including overtime.
Here are tricks Liberty Mutual plays, none of which are OK:
-Try to deny claim even though doctor says it is work related based on "managers report"
-Try not to pay you comp if you are on vacation. The law and the contract clearly state you receive both comp and vacation pay (in my area).
-Try to pressure doctor to lift restrictions one day short of qualifying for wage compensation.
-Try to offer you only 8 hours a day of TAW and say they don't owe you 2/3 of the overtime pay you lost.
-Delay starting payments past the first check deadline (14 days here).
-Pay you every 2 weeks rather than your normal weekly check.
Again, laws very by state, check your own.
If you believe you are not being treated/payed fairly, request a conference/hearing with your state workers comp division.
If they are unfairly withholding compensation often times there is a penalty (2x pay).
