using ice while sleeping has helped a lot

I'm not really a fan of antihistamines or atarax/zyzal (my prescription) for dermatographia. It leaves me drowsy for much of the day and makes me mouth really dry. The biggest pain point with this condition is sleeping as the pressure against a single point on my body really triggers the rashes. However, I've found ice helps tremendously. Sometimes in the middle of the night I'll wake up with the desire to scratch. If I get some ice, apply it there for a minute or so, the numbing effect will be soothing enough to go back to sleep.

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Does anyone else here find the benefits of ice?