Licerid 1% Soap contains Permethrin 1% w/w, a synthetic pyrethroid with potent insecticidal and acaricidal properties. It is primarily indicated for the topical treatment of scabies and pediculosis (lice infestation). Permethrin acts by disrupting the sodium channel current in the nerve cell membrane of parasites, leading to delayed repolarization, paralysis, and eventual death of the mites or lice. Licerid 1% Soap is formulated for external use and should be applied to the entire body from the neck down, ensuring thorough coverage of all affected areas. The soap is left on the skin for a specified duration, typically 8 to 10 minutes, before rinsing off with water. This treatment may be repeated after 7 to 10 days if necessary to eradicate newly hatched parasites. Licerid 1% Soap is generally well tolerated; however, mild local adverse reactions such as itching, burning, or erythema may occur. It is contraindicated in individuals with known hypersensitivity to permethrin or any component of the formulation. Caution is advised when using in infants, pregnant or lactating women, and patients with extensive skin lesions. Proper hygiene and environmental decontamination are recommended to prevent reinfestation. Always follow the prescribed instructions and consult a healthcare professional for diagnosis and treatment guidance.