Patching and Plastering - Bathroom Walls Peeling

Help! Last summer, I removed the wallpaper in our small upstairs bathroom. When I stripped the wallpaper, the drywall was damaged, so I used drywall repair. I then painted the walls. For approximately one month, the bathroom walls looked great;however, during the winter, sections starting peeling and other areas look "crackled." What should I do know to correct this situation? Do I sand all areas? Scrape? Paint remover?

Approximately how old is your house?
What prep did you do after removing the wallpaper?
Is there an exhaust fan in use during and after hot showers?

I assume you either painted with latex over an oil base enamel or you failed to remove all the wallpaper adhesive. Paint remover doesn't work well on walls. Scraping and sanding, then filling any transisions [from peeled to unpeeled] with spackling or joint compound is probably the best way to fix it.

Don't forget to prime the repairs and use a good latex enamel - preferably a kitchen and bath enamel.

Our house was built in the 80s. I think you're correct in both of your assumptions. I probably did not remove all of the wallpaper adhesive and I think the walls might have been painted with oil-based paint prior to the wallpaper. After I scrap and sand, what type of primer should I use? I think it might be best to prime all the wall surfaces. Do you agree?

For the most part use of oil base enamel on kitchen and baths walls ended in the late '70's but it's entirely possible that an 'old school' painter used oil enamel in your bath.

After sanding [don't forget to remove the dust] use an oil base primer. Latex enamel will adhere well to the primer.