thank you for this question. This is not something that I have personally tried. I had not even heard about a Ketamine spray. I have had discussions about the dissolvable ketamine wafer and infused Ketamine. I wanted to share these with you though about the spray: https://migraine.com/living-migraine/take-abortive-treatment-cluster-headache.
https://migraine.com/forums/ketamine. I hope you get the help that you need. Is this something that you are trying, or, want to try? (Tonya, team member).