I got got stitches for a finger laceration about 5 days ago and now my hand is red and a little swollen?

Finger Laceration. Recommend you see the doctor that put in the stitches. You may have an infection that requires treatment !
Get it checked. Swelling and redness could be signs of infection. Have the dr who placed them recheck them, or go to urgent care / er for exam to be sure you do not need an antibiotic.