If someone had an operation nearly a year ago, keyhole, and one of their scars - not the line, the row of dots from the staples - is suddenly red and a bit of pus is coming out, is that anything to worry about, or can you just slap some antiseptic cream on and wait for it to go?
If it was going to be a complication, it would have happened far sooner than nearly a year after surgery, wouldn't it?