Final answer:
Some photographers develop a sensitivity to film developing chemicals, leading to severe rashes on their hands. This is likely an allergic reaction known as contact dermatitis.
Step-by-step explanation:
Some photographers develop a sensitivity to certain film developing chemicals, leading to severe rashes on their hands. This is likely an allergic reaction to film chemicals, known as contact dermatitis. Contact dermatitis occurs when the immune system reacts to a substance that comes into contact with the skin, causing symptoms such as itching, redness, and swelling.
In this case, the chemicals used in film developing are causing an allergic reaction in some individuals. These individuals become sensitized to the chemicals over time, and subsequent exposure can trigger an immune response, resulting in the development of rashes on their hands.
To manage the symptoms, photographers who experience this sensitivity may need to avoid direct contact with the chemicals, wear protective gloves, and use alternative film developing methods or materials.