You know the things you are scared for because something happened when you were little is super powerful stuff. I know if I am stung by a bee nothing will really happen to me but I am fine with not taking any chances and I know it's a powerful psychological thing buried deep in my childhood and you don't mess with that neither do you overcome it just like that.
If somebody can recommend a sort of weapon I can use on very long range to kill bees please do here. I wish I could kill them all and erase them from earth I don't even care what they do for nature they should all die.
Was it the same 'bee' that stung you several times or its bastard cousin the wasp? A bee can only sting once (then it dies) whereas a wasp can sting many times... It could have even been a hornet.
As MisO69 said, we need bees to pollinate our crops, out little flying friends are in decline due to GM foods and the proliferation of neonicotinoid pesticides such as 'Round Up' from Monsanto (This is also linked through its use to depression in humans too). You can read more about this at http://www.ecowatch.com/15-health-problems-linked-to-monsantos-roundup-1882002128.html
Anyway, we really really need bees and I am sorry to hear of your fear of them OP, I hope in time you will accept them for what they are - oh, and with most stingy or bitey creatures - if you leave them alone, they will probably leave you alone.