Hello, @rarelybees2889 If you scroll further down this page to the discussion by @johnbishop , you will find some articles that talk about Hashimoto disease. When we’re you diagnosed with Hashimoto? Is there anything about IVIG that bothers you? Some people on this discussion have Hashimoto and hopefully, they will chime in. Let me tag @michaelpaul , @kjo1 and @msinvula and @darlia

Hi @rarelybees2889 -- Here is the earlier post I made that Becky @becsbuddy mentioned may help answer your questions.
https://connect.mayoclinic.org/discussion/hashimotos-thyroiditis-and-ivig-treatment/?pg=2#comment-324608