Cold hands are traditionally read as distance in touch or warmth that is not reaching others. Old sayings also turn them around: a cool hand, a warm heart.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.