IVIG - if it works, how long before you see results? in PANS / PANDAS (Lyme included) Posted October 12, 2013 · Report reply Hello, we just did our first HD IVIG. Our main issues are tics and intrusive thoughts. For those who have done IVIG, if it is going to help, how long before you see any results? Especially interested in knowing if you've seen help in reduction or elimination of tics. Thank you!!