Something that works for me...... is Camphor Oil.

That oil clears 'my head' and 'grounds' me to the here and now.

I hope things get better for your Father............... and for yourself.

Thanks for the recommendation, sounds good.
I’ll try it out..

Maybe you can go some places that has samplers and try it for free.

You might like Eucalyptus oil.

Too late for samples.
Coincidentally it just jumped in my way the other day, so I already have one.
I like the flavour..

A breathing exercise.

Inhale, hold for few moments and exhale and wait for few moments, then repeat the process on and on. Breath through your nose, do this again and again and again until the pain gets lower and lower, eventually, it goes away. I've done this a couple of times, it works, at least for me.

Try this for let's say 10 minutes when you have a headache, usually, a headache appears because of head tension.

Thank you for sharing, sounds good.. I’ll try it out .
All the best to you

coffee does work sometimes because of the cafeen

Excellent advice. If a headache is caused by stress by relaxing can help the headache go. I will try the inhaling etc. If I have a very bad headache and feel sick because of the headache I take medication and lie down where it is quiet. If it is that bad nothing seems to work. I wait for it to go. It usually takes several hours and can last longer.

Coffee will work because it is relaxing. A cup of tea will also work because it is relaxing. Anything you find relaxing helps the headache to go and I do not take medication for it.

Maybe this will sound stupid but what works for me, and I'm not joking, is if i have a headache i put on my headphones and listen "Here to stay" from Korn. For some reason vibrations of that song always makes it go away, but maybe its just me or placebo effect of working the first time out of luck.