I react badly to being stung by my bees still.
Got stung on finger on Tuesday, my own fault, took glove off for 30 secs to take pics of bees coating hive because of heat, and they got me. Didn't have any antihystemins, right hand swelled up like a boxing glove, lots of pain, helped by bag of frozen peas. Couldn't hold pen or fork as hand so swollen. Better on Friday.
Went to supermarket on Thursday and got anti-sting spray and antihys cream, just in case. And then...
On Friday, strimmed around bees and they strung my left hand thru the glove. At least it was different hand. So sprayed the sting asap and then when it started swelling, lots of ice/peas and antihys cream.
Unlike the first sting point, which had a massive blister and is still sore now, the later sting area is almost gone, so the spray for me seemed to help the contact site.
Having applied more frozen peas tonight, my left hand is nearly better.
So anti-sting sprays and lots of ice definately helps.
Or just not getting stung!