Pouring water is not a remedy for this condition as the condition can be there due to various reasons and also due to underlying ailments in the body.
There could be many reasons for numbness in the legs. Mainly, it temporary happens because of a particular pressure while sitting cross-legged or pressing a leg with sides of the body. This is the common cause but there are many medical conditions which can create such numbness and it becomes necessary to consult a doctor in such conditions. Faulty methods of sitting or lying down can always create such numbness. Even tight clothes could create such situations.
Other reason for this numbness in legs could be associated with back problem in which the vertebral discs and spinal nerves are slightly mis aligned and it can affect the sensation and feelings in the legs. A small compression on the nerves can bring a lot of numbness in legs. Generally in such cases doctors advise to go to physiotherapist which tell us necessary exercises to treat such minor nerve touchings in the spinal nerve region. However if it is of serious nature then the doctor might suggest for a surgery. Another reason is diabetic conditions in which some nerve damage takes place (technically known as diabetic neuropathy) and can create tingling and numbness and even pain in the legs.
Other reasons which are not very common but can create numbness in legs are Tarsal tunnel syndrome, Peripheral artery disease, presence of tumours in the body pressing the nerves, excessive alcohol consumption, fibromyalgia condition, stokes, multiple sclerosis etc.
Let us now see the main line of treatment of this condition. If the numbness is due to posture and is of temporary nature then it goes in no time and one can just try to move around and stand up two three times and it would vanish. It does not require any treatment for it. In other cases one might have to go for some medication as prescribed by the doctor especially for the long duration numbness in the legs. At the same time there are some home remedies also like taking rest, applying ice to the affected parts in the legs, applying hot water bottle can also give relief, massaging is generally helpful as it increases the blood flow and reduces the numbness, exercising also helps in increased blood circulation, Yoga and meditation are also said to be very useful in such conditions, a good sleep is always beneficial, bathing with epsom salt is advised in numbness conditions and healthy diet containing god nutrients and minerals is always a great supportive thing in such conditions.
Knowledge is power.