ok. I know it's not the best answer but, if u just want to see the temp go down turn on the heater.
I wish I knew how much you know about cars. Have you listened for the cooling fan? Have you checked the fluids for things like water in the oil or vise versa?
I know u had the head gasket replaced but still mechanics aren't perfect.
Is it possible that you've become aware of the temp now that it's had to have a new head gasket?
I don't mean to insult you. I only speak from experience. It's something you get allot of with old cars.
