My covid headaches are minor and infrequent so I can get rid of/lessen them with accupressure on the meridian point between my thumbs and index fingers. If you haven't already, it would be good to check with your doctor on this. Mine had me on aspirin for that and the chance of covid microclots (I had to go off it after a week because it caused a colitis flare [no NSAIDs]). I can take tylenol.

I get Botox shots for my migraines due to LC and after 2 rounds of them, my daily headaches became much less noticeable and decreased the number of migraines significantly. The catch is that insurance may not cover it (mine does thankfully), it takes a few days to take effect, and after 2 months, the shots begin to wear off, so the headaches come back and can lead to migraines if the triggers occur. That said, the shots are the only thing that has worked (tried other treatments and pain meds), and I’ll take two months of relief over the time before
I started the shots. I’m also on Low Dose Naltrexone Low Dose Guanfacine, Gabapentin, and take several anti-inflammatory supplements, but it’s clear that the shots make the difference for me. Hope that helps!