Tummy tuck is tightening of separated abdominal muscle, removal of excessive skin,
and removal fat by combined liposuction
according to the need.
The scar area is bumpy, knotty - is not your concern
The sharp pain
is due to suturing of separated muscles and fat.
Except skin sutures all other sutures may take 6 months or more to get absorbed
After consultation with the surgeon the following may be helpful
External application of lotion or pain relieving gel along with oral pain killers