Evaluation of dorsal skin (A) negtive group(B) positive group after 5 days of induction (C) positive group after 10 days of induction (D) after 10 days of treatment by 0.001% SaAuNPs (E) after 5 days of treatment by 0.003% SaAuNP (F) after 5 days of treatment by 0.005% SaAuNPs (G) after 5 days of treatment by 0.5% clove (H) after 5 days of treatment by Salicylic acid (I) after 10 days of treatment by 0.003% SaAuNPs (J)after 10 days of treatment by 0.005% SaAuNPs (K)after 10 days treatment by 0.5% clove (L) after 10 days of treatment by Salicylic acid.