Pour out a small amount of soft shampoo into a shallow bowl. Soak the tip of the brush and gently swirl, being careful not to wet the base of the brush. Rinse the brush under warm running water pointing downwards. Repeat steps two and three until water runs clear from the brush. Repeat steps two and three until water runs clear from the brush. Use a cloth to wipe the brush clean, reshaping bristles as needed. Lay the brush flat on a cloth until completely dry.