Thanks for posting your query
You had operated for grade-1 compound fracture
BB forearm by Square nail.
Slab was given to you as an external stablisation because square nailing was not a so rigid fixation.
After 5 weeks there is no much role for anti-inflammatory drug, but you can take it SOS when pain occurs.
So you should visit your surgeon after 2 weeks for clinical exam of fracture site.