yea , experience it before , my workplace got lots of bee flying around coz the place got alot sugar (sack)
When the bee sting , it juz feel like ant bite (normal reaction would to sweep it away ) so usually will see sting on the skin unless the bee have not being tear off from it sting when u sweep it
Wait a few minutes , the skin will start to feel itchy , soon the swollen will become bigger and bigger , (size estimation : bigger than uncle ringo coin ?
From my experience , the swollen size depend on the how much the fluid release from the sting. I once remove it immediately , and squeeze whatever went in , in the end it did not swell as big as expected
Then it time to findy all kind of remedy to treat it , antispeptic.....vinegar .......soya sauce and watever
