What's a good way to deal with a headache that's lasted for days?

A trip to the doctors office.

Any headache that persists should be checked out. Headaches can be a sign of many things – high blood pressure, dehydration and even serious conditions.

Are you hydrated? Drink clear fluids and be sure to phone your doctor’s office, talk to a nurse and see if they think you need to be seen.

Medicinal Marijuana – I know it sounds crazy but I’ve got a friend that is prescribed marijuana for her severe headaches. Smoke you a joint and you’ll feel better.

Definitely go to a doctor. Until then plenty of fluids, avoid straining eyes (i.e. reading in low light, watching a monitor or TV). Also try to get to a quiet environment and rest even for a few minutes.
Paracetamol may help take the edge off it or give relief for a time but it is only a temporary fix if you headache is persistent.

Possible causes – tooth infection, eye strain, stress, tumour, environment, dehydration. Could be many other things too.

Are you able to say whether it is a normal headache or a migraine?

Call your doctor. Make an appointment.

Then turn off anything that seems to bother you. Lights, music, anything. Shut your eyes. Make a cool compress by putting some ice in a plastic bag and the bag in a dry washcloth or hand towel. Lay down, put that over your eyes/forehead. Try to get some sleep if you can. You may be dehydrated, so make sure you get plenty of water.

I find the excedrin does amazing things for my headaches, but try to talk to the doctor or nurse before taking anything. Just to be safe.

Excedrin works well. Depends on the type of headache.
Any lasting 3 days warrants a trip to the doctor. you may have a sinus infection.

I’d rent a guillotine to end it, but that’s just me.

Headaches are not supposed to last for days. Please see your doctor ASAP. Let us know what happens.

Feel better soon.

Thanks everyone for your advice. I’m planning on visiting the doctor very soon; my insurance situation has been a bit tricky (I just started a great new job, but my benefits don’t hit for another couple of weeks).