Go to the ENT. I had wax buildup a few years ago and my PCP couldn't get it out. Sent me to an ENT. Laid me on my side, used a kind of awl to screw into the wax and then yanked away, jerking my head off the table a few times before he cleared things out. Felt good when he was done. I've had not further problems.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13