Worried Momma

Yesterday I took my little guy back to his neuro dr. And now he wants to go ahead with the decompression. Being a Momma, I worry if this is the right decision. Or should we put it off a little longer. His symptons are mild, leg pain and head pain. his neuro doctor worries it could get worse. But I am just not sure if its the right thing to do. He is so little to have such a big surgery. Will this cure him from chiari if we go thru with it?