-
Jeez, that's awful, sorry to hear. Have you concluded if it's a reaction to something (SLS)? Like you i normally get one or two at a time and the only time i've had a breakout was a reaction to shit toothpaste. If you haven't already, stop eating sugary/spicy things and avoid overly hot drinks. Never had much luck with Corsodyl but good ol salt in warm water can help and with a couple paracetamol give some temporary relief.
Currently got about 15 of the buggers. Never had more than 1 at a time previously and I'm currently hating things.