Histamine Intolerance and DAO supplements

Hello folks, I believe that I am histamine intolerant. I brake out in rashes or hives when I eat high histamine foods or beverages. I developed this sensitivity while tapering off an SSRI. I am wondering if DAO supplements work. They are expensive and I'm unsure if I should try a supplement of this nature.

Thanks for the reply. I am trying to do a low histamine diet this week. I never had sensitivities (hives, flushing) until I started to taper off Paxil. I hope the low histamine diet helps me.