I second this. My sensitivity issues started to really subside when I made a concerted effort to stop actively fighting sound. It becomes an awfully exasperating mental state to be in, having a constant auditory guard up. Now, unless it's something that I know is a dangerous SPL, I just let it hit me. With that being said I am far out from the "acute phase."Something people don't like to talk about here is how over protection can lead to worsening of symptoms. I don't know how often you are using hearing protection, but if you are over doing it I am sure your making your hyperacusis and phonophobia worse.
Maybe download an app on your phone and test the environment and if it is in safe levels and then take the earplugs out. If I am in a noisy place that seems loud I always check, and it if is too loud for comfort I pop my ear plugs in. If it isn't a loud environment, I don't use them.
I've also been experimenting with headphones, at reasonable volume obviously. Exploring the possibility that middle ear muscle reactivity could be tamed with pleasurable sound (ie. music) that massages the frequencies so to speak. Essentially I'm trying to desensitize myself, and it actually seems to be working, or at least isn't making anything worse.
I say shotgun a beer and tell the phonophobia to f*ck off I don't know of any other way to overcome it.