Question

why does lady Macbeth say All the perfumes of Arabia will not sweeten this little hand​

Answer 1

Answer:

Lady Macbeth says this because she has realized that nothing in the world will erase the stain of King Duncan's death from her conscience.

Explanation:

Answer 2

L. Macbeth is referring to when she had Duncan's blood all over her hands. She had left the blood from the daggers with the sleeping guards. L.Macbeth is suffering from flashbacks alluding tomuch of the play. Her conscience is bothering her. She says that nothing, not even perfumes of Arabia, can take away the stench of death on her hands.(or aleve her conscience)