Welcome to Healingwell, so sorry to hear you have been going through this. Sadly sometimes a migraine can kick in at a high level and not go for about a month, although I do realise this has gone on for much longer!
You say the 'blood patch' took the pain down? You will have to excuse me as I am in the UK and do not understand what the 'blood patch' involves?
Is your Neurologist a Headache Specialist? If not, you really need to see a Neuro who is!! Hang in there, take care
Co-Moderator of the Migraine/Headache Forum