My situation is rather different from most here. I don't get the warmth and redness as I start drinking.  Instead I get a severe redness & rash about 4 hours after I stop drinking the rash will come and go for the next 24 hours or so, rash levels vary depending on amount of alchohol, and lack of sleep.  rash is also worse when I drink back to back days or 3 days in a row.

Yes that might sound like a lot to drink, but I tend to drink a lot.  The speed of which I consume the alchohol does not have any variation of affects, I don't drink ultra slow, but I'm not sitting at the diner table with a funnel either.

Update #2  For ThanksGiving this past week I popped another pill prior to dinner.  With Dinner I probably Drauk about 4 beers and 2 bottles of wine..   I was perfectly fine all night and the next day.

Update #1    This past Sunday I took a Zantac on my way to a friends house to drink at around 1 PM.  I had 8 beers of mix varieties from 1 PM till 11 PM.  Went to sleep, but woke up around 2AM. I had a little bit of a rash, so I popped another pill.  Woke up the next day and did not have the rash  any more.  It didnt come back in the afternoon like it does some times either.   More updates  soon

Here is my experience that I think its similar to ONLY A FEW on this forum..

I am a 32 year old half japanese, half american male.   I've been drinking rather heavily since I was 21 and never had such problems before. About 3 years ago I started getting HIVES AFTER drinking.  I will get them all over my body and face. Its red, blotchy, bumpy and a little itchy. If scratched they would spread even more. I don't get red flushed or accelerated heart rate or beat red or dizzy while drinking.  I can drink ALL night with no problems.  It usually starts on my body about 8 hours after I stop drinking. Arms, legs, chest, back and face..  But they go away after a couple of hours. Untill the next drinking adventure. Symptoms are severe when I combine lack of sleep with alchohol. in fact I could have just one beer and only sleep for 3 hours that night, and the next day is bad hives..

I get the hives more when I drink any other alchohol except for Scotch whiskey. Beer is the worst.

a friend told me about Zantac and I put it to the test.

I took a max strengh zantac 30 minutes before going out on a beer drinking binge. I drank about 11 pints of Guiness.  and I woke up the next day with NO HIVES. The first time in 3 years.   Very pleased...   BUT  I started getting them later that day... 18 hours after I stopped drinking.. So I took another pill. the hyves went away...  perhaps the alchohol was still in my system, and the zantact wore off? I'm still skeptical, so I try it again next time and will post here again.