Pediculosis is a scalp/hair disease caused by parasite infest of Pediculus humanis capitis (P.h capitis). The prevalence of P.h capitis is high in developing country. The choice of treatment for pediculosis nowdays is chemical pediculicide, but it has resistance and side effect such as neurotoxic, pruritus, eritema and oedema. The alternative to overcome the problems is to use lemon juice (Citr…