Here are some details about ointment creams, including their positive and negative aspects, as well as common ingredients or materials:
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Ointment Creams: Ointment creams are viscous, unctuous, semisolid preparations that can contain either dissolved or suspended functional ingredients. They are commonly used for various skin conditions, such as insect bites, poison oak/ivy, eczema, dermatitis, allergies, rash, itching of the outer female genitals, and anal itching.
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Positive Aspects: Ointment creams have several positive attributes, including:
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Emollient Effect: Ointments exert a strong emollient effect, softening, smoothing, and lubricating the skin, which makes them useful in dry skin conditions.
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Occlusive Layer: They form an occlusive layer over the skin, preventing the loss of water and heat. This occlusive effect also enhances the penetration of the active drug and improves efficacy, especially in thickened, lichenified skin.
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Fewer Preservatives: Ointments require fewer preservatives than other vehicles since they contain little or no water.
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Negative Aspects: Some potential drawbacks of ointment creams include:
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Difficulty in Spreading: Ointments are usually more difficult to spread compared to creams, lotions, and solutions.
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Allergic Reactions: Ointment creams may contain inactive ingredients that can cause allergic reactions or other problems.
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Ingredients or Materials: The specific ingredients or materials in ointment creams can vary depending on the formulation. Here are some common components:
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Emollients: Petrolatum, lanolin, mineral oil, and dimethicone are common emollients found in ointment creams.
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Humectants: Glycerin, lecithin, and propylene glycol are examples of humectants that draw water into the outer layer of the skin.
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Softening Agents: Some ointment creams may contain ingredients that soften the horny substance (keratin) that holds the top layer of skin cells together, such as urea, alpha hydroxy acids (lactic/citric/glycolic acid), and allantoin.
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Occludents: Ointment creams may also include occlusive substances like white petrolatum, which help in forming the protective layer over the skin.
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