Acupressure points on your hand/fingers. Work with these for the issues you are dealing with for with either acupressure massage methods or even basic hand massage techniques for these areas. This will get the energy flow patterns moving for these areas and you can even send healing energy to these areas too!
The Organs of your body have their sensory touches at the bottom of your foot, if you massage these points you will find relief from aches and pains as you can see the heart is on the left foot. Typically they are shown as points and arrows to show which organ it connects to. It is indeed correct since the nerves connected to these organs terminate here. This is covered in great detail in Acupressure studies or textbooks.
Acupressure Points are located around your body and all you need to do is press on those points with your fingers to deal with health/ beauty related problems. It is said that in Ancient China, Acupressure Points were like prescriptions to treat patients. They had herbal medicines but this was a much easier way . . .