Topical hexachlorocyclohexane once a day for 10 days ought to do it.
Follow up with “Another Look at Harmony” by Philip Glass if necessary.
I’ve found I’m particularly susceptible to the Grateful Dead’s “Shakedown Street.” I don’t do anything about it. Just ride it out, and it’ll get tired and go away after a couple of hours.
Well, well, well. You can never tell.
The best advice I’ve seen is to think of a short ad jingle like “By Mennen!” or “Plop plop fizz fizz”. Because of their short duration they don’t become earworms themselves but rather helps focus your brain elsewhere whenever the earworm pops into your brain.
The cure I use is to sing a song to myself from a completely different musical tradition. Personally, I usually use the Dakota hymn “Many and Great”, but something from Asia or Africa would probably work, too. It dislodges the original song, but it’s enough different from most of what I’m used to that it doesn’t get stuck in its place.
I consciously replace it with one I don’t mind so much.
My go-to is Cream’s “Sunshine of Your Love”.
mmm
The worst earworm I ever had lasted for about eight months: I had stuck in my head “The Wreck of the Edmund Fitzgerald”, except set to the tune of “Stairway to Heaven”. No idea what put that in my head.
Then, one night, I woke up from a dream, with a tune in my head from the dream, and thought to myself “There’s no way I made up that tune myself; what am I remembering it from? Oh, yeah, that’s the real tune of ‘Wreck of the Edmund Fitzgerald’!”, and just like that, the earworm was gone.
I manufacture a big, splashy, broadway-style ending for the song in my head. Giving it a super-definitive end seems to help my brain plunk it into the “all done now” category.
If somebody already posted something like this, I didn’t read it because the contents of this thread are undoubtedly a horrifying minefield (mindfield?) of earworms.
It doesn’t happen often, but when it does, this is usually the way it happens. I have to listen to it often enough to finally memorize the song befire it’s willing to let go.
Looping snippets are worse than whole songs.
Like others, that’s me too. There’s a local car dealership, Envision Honda, and also Envision Toyota, and their radio jungle is annoying but catchy, and it’s also very annoying. Did I say that already?
It’s a looping snippet, and like @Yllaria said, those are really bad. That ear worm gets so bad I have to sing It’s a Small World to flush it out of my brain.
That’s bad.
Well, the point is that it seems to not only not become an earworm, but cure your current earworm. Who knows, maybe the harshness of the subject matter has something to do with it, resetting your brain and clearing out the earworm. It only takes the first verse / chorus to work for me.
Damn you, now I’m trying to do this in my head. 
Reminds me that the lyrics of “Amazing Grace” can be sung to the tune of “House of the Rising Sun” and vice versa:
Whatever you do, don’t click play!
I warned you!
Deep in my closet, I have the LP of It’s a Small World. Good to know that it has a use besides torture.
I’m going to double post this in both threads, but do we now have duplicate, competing threads?
These days it seems that almost all my earworms are good ones; and they don’t stay for too long. So that makes them a trivial and self limiting condition (which is a splendid phrase I came across - in the context of fairly aggressive treatment options - describing the common cold).
Like many others here, if I have to get rid of one it’s a matter of replacement rather than removal. I prescribe myself a course of Hunky Dory - that’ll fix it.
j
I am that way. My go to earwormicide is Danse Macabre by St-Saens.
The old Bumblebee Tuna jingle - reinforced by the beat matching up with the bounce of the boat on the wavelets. Sigh.
I walked around the submarine base hospital once absentmindedly humming the Soviet National Anthem … and once Deuschland Uber Alles … sigh My friend Matthew loved setting me up with earworms.
All four of those songs are part of the same (very large) song family, which also includes the Gilligan’s Island theme and every Emily Dickenson poem. Any of them can be sung to the tune of any of the others.
Well, this one was started October 4 and has 37 replies.
The other was started June 15 and has 1242 replies.
mmm
That would be June 2015. Isn’t that right Discobot?
Hi! To find out what I can do, say @discobot display help.