I'm in the same boat. I think it just takes multiple times. Like when you feel better still do another cycle when you are feeling better. I have now relapsed hard. BUT I think it might have to do with taking magnesium for some reason...
I read a post on here by some guy talking about chelating for metals and it alleviating his symptoms. I am starting to wonder if I shouldn't start again but also throw that in there somewhere.
I've done albendazole/ivermectin/doxycycline multiple times, prazi, niclo, alinia, some protozoa med, diflucan and some of those multiple times. Usually after all of them I would feel better but I think the longest stretch I had was when I did Iver/Doxy and then Diflucan. I don;t know why I am back to square one but I have some thoughts on it.
But as far as the nose goes nothing ever stopped it more than the doxy/ivermectin that I did. I did it twice and had "larva currens" all over the top f my head and had some real bad sinus pains from it.
I assumed I killed them but like I said before I probably should have done like two or three more cycles after a small break just to make sure I had them all killed.
I am going to try humaworm now and hope it doesn;t make me worse. But I plan to follow humaworm with doxy/ivermectin for a few rounds... from there I have NO IDEA!