My kitchen water pipes froze. However water pressure upstairs and down are OK. The problem is that the water pressure has not returned in the kitchen is drips in a small stream. How do I regain water pressure in the kitchen?

Hmmmm... first thought----->>> Remove the aerator at the end of the faucet... maybe that it is clogged from the freeze up. Second thought--->>>May need to shut the water and remove the cartridge assembly and then purge the line and examine the cartridge... may even need to replace cartridge (assuming you are talking about a single handle here). Let me know if that helps. I pretty much get in every day so repost if you need any more help.