Emulsion is a type of topical dosage form that is a mixture of two immiscible liquids, such as oil and water. The active ingredient is usually suspended in the oil phase and dispersed evenly throughout the emulsion. Emulsions are used to deliver medications topically to the skin or mucous membranes. They are commonly used for skin conditions such as rashes, eczema, and psoriasis. Emulsions can also be used for transdermal delivery of certain medications, such as hormones or pain management medications. Emulsions can come in different forms such as lotions, creams, and ointments, and the type of emulsion chosen depends on the desired texture and consistency. It is important to follow the manufacturer's instructions for use and to avoid using the product if there is a known sensitivity to any of its ingredients. Emulsions may cause skin irritation or other side effects, so it is important to monitor for these and discontinue use if necessary.