Inspite of no hard and fast rule, following are the tips that can prove to be helpful while removing henna.

1. Remove the henna paste immediately :
Removing the henna quickly after application, using water, will prevent the henna dye from sinking below the most external layers of skin.

2. Take a Bath :
A nice soak in hot water will cause the skin to exfoliate; thus, the layers of skin which have absorbed the henna design will flake off sooner if it is soaked in water. Many artists suggest that soaking in a hot tub - the chlorine in the tub will definitely help to take the henna right off.

3. Wash hands :
Stronger soaps, like a soak in the hot tub, cause skin to exfoliate to a greater degree. To get rid of henna sooner, choose the antibacterial soap instead of regular glycerin.

4. Wait :
There is no hard and fast way to remove henna from the skin immediately. Some artists recommend soaks in mild, dilute bleaches. In general, scrubbing too hard and soaking in the bath for too long may just give red, prune-shaped fingertips.