Crotamiton (Crotorax)

It is less effective than gamma benzene hexachloride as it has to be applied for 2-4 night heights. Its irritant effect is, however, less than gamma benzene hexachloride. It is available as 10% cream and lotion. It reduces itching.

Benzylbenzoate (Scabalcid lotion, Scabindon ointment)

Its irritant effect on the skin is more than that of gamma benzene hexachloride and may cause a burning or stinging sensation on the area of application. It is applied for 2 days. Itching may continue for a few days. This drug is used in difficult cases only.

Sulphur Ointment

This is messy, but an inexpensive remedy. It has a bad odour, and stains clothes, but is very safe. It is preferred in infants, young children, and pregnant women. A 5% sulfur cream (Persol Forte) contains benzoyl peroxide 10%.

Lice Infestation

This is also called pediculosis as it is caused by common lice - pediculus capitis (head louse). Although lice infestation is not injurious to health, it is very annoying due to the itching sensation caused by it. Excessive scratching and excoriation may lead to secondary bacterial infection. The itching is caused by the saliva of the parasite deposited on the skin. If eye lashes are involved, plain vaseline is applied twice a day for about a week.

Permethrin 1% is applied to the scalp and hair and left for 30 minutes to 8 hours before a rinse.

Gamma Benzene Hexachloride (Emscab, Gammaderm, Gab, Lorexane, Scarab)

Malathion

A 1% lotion is very effective and takes 8-12 hours time to kill the lice. However, it has been banned in the USA due to its slow action and toxicity to nerves. It should be applied in a very well ventilated area, lest the vapours be inhaled.

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