Cchines, thank you for that bit of information on hydroxyzine and false ANA positives. I did not know that. I always have hydroxyzine on hand to take as needed for allergic reactions, as it is not only anti-anxiety but antihistamine. I do not take it on a regular basis, only in the case of allergic reaction. During the course of my vaccine problems, the neurologist did test my ANA, which came back negative. Thank you again for a valuable bit of information for future reference!