If you have hardwood floor bubbles or blisters, there are https://srasta.in/ho... few ways to try to fix them without having to replace the entire floor:

Drill small holes: Use a small drill bit to create a tiny hole in the center of each bubble. This will allow any trapped air or moisture to escape, and the wood will settle back into place.

Inject adhesive: Using a syringe, inject a small amount of wood glue or adhesive into the hole you created. Press down on the bubble with a weight and leave it for a day or two until the adhesive dries completely.

Sand the area: Once the adhesive has dried, sand the area with fine-grit sandpaper to smooth out any remaining bumps or rough spots.

Refinish the floor: If necessary, refinish the area to match the surrounding floor.

It's important to note that these methods may not work for every type of bubble or blister on a hardwood floor, and in some cases, it may be necessary to replace the affected planks. If you're not sure what to do, it's best to consult a professional hardwood floor installer or refinisher.