Board Thread:Skyrim/@comment-107.3.186.128-20150329022844/@comment-6881629-20150329130623

I don't think the bow does that, i don't remember it happening on the PS3 and i just spawned one on the PC to test it and no glow (except for arrow tips and npc's you shoot with it). Maybe when you shot it at the sun one of the sun beams hit you and the effect got stuck on your character (i tired but couldn't hit myself with the normal attack).

If you have some kind of light effect stuck on you character and are on the PC have a look at the guide here on the Nexus forums.