Wash the nylon brush to remove debris and allow it to dry completely before reusing it for this purpose. [4] X Research source
If the hairbrush has a wooden handle or paddle, do not submerge the brush in the water. Most wooden brushes are coated in a moisture repellant, but they aren’t 100% resistant. Instead of submerging in the bowl of water, perform one or two additional toothbrush cleanings.
If you have a wooden bristled brush, hold the brush bristle side down over a sink or a towel. Take a mist or spray bottle and soak the cleansed bristles until the water runs clear from the bristles. [14] X Research source