Headaches are common after the infusions. I’m given 2 Tylenol for the headache and 2 Benadryl for possible rash side effects. I’m told to hydrate hydrate hydrate starting 2 days before and 2 days after the infusion to help with the headache. I’m wiped out for the next few days afterwards, with flu like symptoms. I did 5 days of IVIG and now going every 3 weeks. CIDP exacerbates my fibromyalgia pain immensely. No improvement yet. I’m having problems with my hands and arms lately. Under the skin crawly feeling. Is this part of it?