Originally posted by Draconifors:

I was too scared to fight the one I found in melee, so I stood on the roof of a crypt and used my bow. :D

Took around 60 iron arrows, with a fully upgraded Draugr Fang and a bow skill of ~48, so it was not an effective strategy. But it was safe.

I wonder how well Fire Arrows would work against them.

Basic Fire Arrows should get a Poison/Frost-tier upgrade using Surtling Cores; "Blaze Arrows". (Different recipe, of course.)