Set on low and blow. Helps get the iceberg feeling out reasonably.
Try 'Bed Buddy products' They're a rice like product that can be microwaved and can give off a soft heat [IF you don't over-cook the heat pad thingies]which can last for about 20+ minutes to thaw things out.
http://www.amazon.com/Carex-Bed-Budd...f=pd_sim_hpc_4
Other than that? Electric blankets for the bed help as well. Keeps the frozen feet warmer than a regular blanket.
That and gentle massaging to increase circulation.
Hope this helps! Just be careful that nothing is too hot and if you've trouble 'feeling' it? Just be MORE careful. Don't want burning on top of everything else...real burning I mean.
Let us know what you come up with, please! - 's!! - j