Personally, I wouldn't worry about stress dosing for either mosquito bites or sunburn. Trust me, I've had both (all too many times, I have fair skin and am a mosquito magnet). I wouldn't think you'd need one for a bee sting (I've never had one) as long as you're not allergic. If you are allergic, here's something to think about before giving a stress dose. The medication for a bee sting allergy is epinepherine, in the form of an Epi-Pen. You might want to check on drug interactions before giving both at the same time.