If it is that bad, completely remove, re-rock or over-rock
(remove everything to the bare walls, tear out the old walls and re-sheetrock them, or simply attach new sheetrock right over the existing walls)
With layers of old wallpaper and layers of paint over that, it's truly a "remove all" or "over-rock" type situation
(remove everything to the bare walls, tear out the old walls and re-sheetrock them, or simply attach new sheetrock right over the existing walls)
With layers of old wallpaper and layers of paint over that, it's truly a "remove all" or "over-rock" type situation