Bad headache treatments help?

Hi guys back with another question here 😂

I've had this really bad headache over the past 2 days. I've taken 8 lots of codamol (I think I have taken all the max that I can take rn) since then to help the pain. It helps for a few hours and the rushes back.

I can't tilt the left side of my head nor lift my head all the back without being in pain. I also can't keep on calling the doctors. Ideas please?

Edit: Unfortunately I can't take anything with parcotomal in it either 😕
Bad headache treatments help?
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