I have a barrel top dresser in my damp garage and one end of the top has delaminated over about 6 inches from one end- maybe been dripped on from roof condensation? Anyway, the laminates have corrugated/rippled just to complicate matters. Any advice on how to repair this situation?
Hard to say for sure until you show pictures. On a flat surface the corrugated surface you described can sometimes be recovered by playing steam over it to soften, then clamping it under something like a granite chopping board.
You can use a steam cleaner, or even a steam iron. If you don't do your own ironing then wait for the boss to go out, she might not appreciate the repurposing of her iron
Joking aside I have an old steam iron and a steam cleaner in the workshop, they are invaluable tools for repairing veneer.
Do not apply an iron directly on the wood, a proper linen tea towel is the best thing to use over the wood to protect it, nothing synthetic that is going to melt.
If it's old then the steam can sometimes re activate original glue and when you unclamp it can be good to go. Other times you can unclamp to find it is flat, but still delaminated. Then you have to get glue in between and clamp again.
Feeler gauges can be useful for getting the glue in between.
Doing any of this on a curved surface will be fun and games.
For small blisters you can use hypodermic syringe and needle sold for refilling printer cartridges to inject glue. You can't generally buy sharp needles, but easy enough to grind the ends of the square tipped printer ones.