<s>[INST] I had three teeth extracted on thursday. they have since healed up nicely but since friday evening I have had a constant, horrible headache (moving my head, bending over, etc... is excruciating). When I am able to sleep for a few hours I am covered in sweat. [/INST] Hi. Thanks for the query. Headache after tooth extraction can be due to radiating pain from extraction site. But if there is no pain at the extraction site then the headache can be unrelated to the dental extraction. You can take painkillers to relieve pain but in case if there is no improvement or recurring episodes of headache then consult an Emergency room and get evaluated. Hope this helps. Regards. </s>