Final answer:
Moisturizing creams to alleviate itching and inflammation often contain emollients, humectants, and occlusives, as well as corticosteroids and immunosuppressants for their anti-inflammatory properties. These creams manage skin conditions like eczema and contact dermatitis by hydrating the skin and preventing further damage or infection.
Step-by-step explanation:
The question addressed revolves around the threshold of itch and the summation effect when hot moist skin increases itching sensations. If effects summate, one might experience an intensified itching sensation, which could become quite uncomfortable.In a moisturizing cream intended to alleviate such skin conditions, you would expect to find substances like emollients to help smooth and soften the skin, humectants which draw moisture into the skin, and occlusives to create a barrier that locks in moisture. Additionally, anti-inflammatory ingredients such as corticosteroids and immunosuppressants might be included to reduce itching and inflammation.The properties of these substances are critical in managing conditions such as eczema and contact dermatitis, which can cause dry, itchy patches of skin. By hydrating and forming a protective barrier on the skin, moisturizing creams can relieve the itch and reduce the risk of secondary infections caused by scratching.