Blow warm air on stuck photos if they recently adhered to one another or have been stored in damp conditions. Plug in the hair dryer and turn it to a low-heat setting. Blow air 6 to 10 inches away from the photographs, aiming along the photograph edges. Pull gently at corners that are not stuck down to get some of the air between layers. Continue with the warm-air treatment for several minutes along each edge, rotating the photos to dry out other areas. The warm blasts of air remove excess moisture from the photos and may make the image coating harden again, freeing one layer of images from the next.