I've had a shunt put in a small surgical wound for drainage and it was not as bad as it sounds.
My little wound became slightly infected and was swollen and weeping a little. So, they opened it a little and put in a shunt, which was really just a piece of cotton leading away from the infection. It was quite icky, to tell the truth, as the fluids leaked away and it itched more than anything.
But, it only had to be drained once and then it healed right up and now I barely have a scar.
Of course, I was on antibiotics as well, so they probably helped more than the shunt.