When I respiked my T from an alarm clock I got more aggressive with my regimen and found these things helped:
- daily omega 3 (evidence is weak, but found that helped me pretty quickly in terms of reduction of T, elimination of H, and more resistant to spikes)
- nighttime earplug use (found that habituation proceeded much quicker, and no morning waking up with increased volume of T)
- musician earplugs (partially protective, but hear just fine with them in, ideal for situations where I want to hear, but still need some protection, such as in a noisier store, or walking outside near some traffic with intermittent noise exposure)
- ear muffs (still think they look goofy, but put over my earplugs for lawn mowing is ideal, at protecting the entire ear area from bone conduction of the noise, and no element of T spiking even after a morning of power tool use- like the combo so much I use it for vacuuming as well)
Not sure any of this is a true treatment, but it clearly worked for me as T from noise exposure is pretty minimal these days.