[ It made sense that they wouldn't cause physical harm, as normally in a dream, there was no physical body to harm. This world was slightly different, but it seemed some things remained the same. ]

Then the nature of the wounds that are treated would merely change to suit the needs of this world.

[ Nahida turns back to the vampring, which seems to have tired itself out and has momentarily stopped struggling. ]

As far as I've observed, this creature isn't capable of launching long-distance attacks of any sort. It may require physical contact to inflict a wound.