I've found something that seems to be working to prevent me from blushing in 95% of the scenarios that I normally would have. It's not perfect, and that's still frustrating, but I wanted to share nonetheless because I was at a point of deep despair before I found this, and it's made a HUGE difference. I can't believe I suffered for so long without it, and now I can never imagine going back to how I was before. What's been working for me is a supplement called 5HTP (5-Hydroxytryptophan. It is a naturally occurring amino acid and chemical precursor to serotonin and is available over the counter. I've been taking it for about 10 months, and during that time, I've played around with the dosage a little bit. The recommended dose for the brand I'm taking is 200mg. After instances where I would blush (much fewer and farther in between now), I felt like maybe I wasn't taking enough, so I doubled the dose and took 200mg in the morning and 200mg at night. It made me a bit nauseous and didn't seem to help any more than the original dose was already helping, so I went back to just taking 200mg in the morning. I noticed an improvement initially within the first 1-2 days, it was crazy. I felt like I had won the lottery. Finally, after years of negative self-hatred thoughts and suffering so much from blushing, I finally have some reprieve. Recently, I've also started taking L-Theanine (200mg) at night before I go to bed. It's found naturally in green tea and is taken to promote relaxation and restore a sense of calm. I don't think taking it alone would do much, but it's an excellent supplement to the 5HTP and I feel like it's helping me overcome my fears in the last 5% of scenarios where I was still feeling uneasy and anxious.
If you're reading this and you're at your wits' end, I've been there, and this might help. It did for me, so it's certainly worth a try. If this doesn't do the trick for you, don't give up. Keep searching for something that works. I'm not a doctor but I believe that my brain has always been chemically imbalanced and that's what was causing the blushing. After seeing the 5HTP work, I think it must've been that I just wasn't producing enough serotonin. I'm putting myself out there now in ways I never would've imagined, I can speak in front of groups now without blushing, and the best part is that the positive reinforcement of living a normal life and not blushing in situations I ordinarily would have gives me confidence that it can continue that way. I don't fear blushing anywhere near as much as I used to, because I'm starting to build up the evidence in my mind that this is working, and I can trust this.
I know what you're going through and wish the best for you. You CAN and WILL get a handle on this. There will be something that works for you. Do NOT give up.