I have recently switched from Sumatriptan to Zomig – Sumatriptan just wasn’t always shifting migraine, even the nasal spray.
I am prone to cluster headaches that last 3 – 4 days too and paracetamol only lessens them, it doesn’t get rid. Cocodomol does a better job but wipes me out.
I am not sure if Paracetamol has become less effective for me, or the headaches have just got worse.