Upon speaking with my primary care physician, he mentioned to me that if I were concerned about excess histamine I should take hot showers. Supposedly the heat from the water would stimulate the skin and bring histamine there where it would be used up. I thought this interesting, as I was unknowingly using this treatment for years as there was nothing that made me feel better than sitting and soaking in a hot shower.
A few days passed, and was going to have an O so I took my niacin and awaited the flush. Then this idea came to mind: my skin flushing feels so much like getting a scorching hot bath. The flushing feels pleasant in a similar way, washing over me.
Is there a connection? I have not been able to find any study on hot showers reducing histamine, but my doctor told it to me like it was common knowledge among his peers. He is an osteopathic doctor, by the way, and has been fantastic to me.