my son has a vp shunt, my question is why does his shunt get swollen for a couple of hours and then it goes away? my son got his shunt placed about 2 months ago, after i saw these symptoms i took him to the doctor and the doctor said that all the test came out good but still his shunt keeps on getting swollen, i am afraid he might get an infection or maybe there is something wrong with it and the doctors did not noticed when he was in the hospital. what can i do for my son? also my son was diagnosed with tb menengitis and hydrosephilis.