Just how much poison damage do they do?

[Baajikiil]

Every time I have to fight them in the course of time since I started Diablo, I bang my head against the wall because their poison damage drains my life like mad even with poison resist. I've even tried to turn cleansing on, but it's still quite annoying. Perhaps more annoying is running back to town when your merc dies of poison. So is it just necessary to pack more antidotes vs them?:o

Also, there seems to be a major increase in these guys poison damage whenever they hit you with a critcal melee attack that poisons you(the mummys/andariel). It may only double it like other monster critical hits, but it certainly seems to increase the duration as well.

BTW, in addition, in NM and hell there is an increase to the length of any poison you get hit by. I think it matches the penalty to resists, but not positive. This can be mitigated with -% poison length, but if you have none you can be poisoned for quite a long time indeed.

Usually I just port to town after killing one of these guys, especially Achmel with his unique poisonhit mod.