Dear Doctor,
Last year I was stung by a bee/wasp/hornet... I am not sure to be honest.  I was outside splitting white ash wood, to which I have a minor allergic reaction.  I have been stung many times in the past, by all types of insects, and I had never had a reaction.  This time, I puffed up like a blowfish, had welts all over my body, and my breathing became very constricted and labored.  I immediately went to the hospital and was discharged a few hours later.  A couple of months later, I was tested for bee/vespid allergens and everything came up negative.  Ok, so at this point I was more perplexed and disconcerted than anything, especially when no physician could give me a good answer as to what happened.  Just today, I was stung again while cutting the grass.  I am not sure by what type of bee or vespid.  This time, there was no reaction, except for pain and a little bit of swelling at the sting site, which was a couple of inches below my knee.  The only thing I can think of that explains the critical moment I had last year was that when I was stung then, it was directly on a major vein on my right hand.  Do you have any thoughts on this?  I would greatly appreciate any insight.
Sincerely,
Tony 
                                                        
                                                     
                                                    
                                                        
                                                            
                                                            
                                                            
                                                                posted on
                                                            
                                                                Fri, 14 Mar 2014 
                                                            
                                                            
                                                            
                                                            
                                                                
                                                                    
                                                                    
                                                                    Fri, 28 Aug 2015
                                                                    
                                                                    
  Answered on 
                                                                 
                                                                
                                                                    
                                                                    
                                                                    Fri, 28 Aug 2015
                                                                    
                                                                    
  Last reviewed on