Your wife has problems with her pericardium, lungs and digestive system, but don't worry, it should be a minor problem. Vertical stripes represent persistence, the middle finger is pericardial meridian and the index finger is large intestine meridian. These two meridians are very close. As long as you hit them 10- 15 minutes every day, the diseases in your body will be eliminated, and the black lines on your fingers will naturally disappear.
Method:
The medial midline of the upper arm is the pericardial meridian, and the upper medial part is the large intestine meridian. Tap from bottom to top with moderate intensity. Starting from the hand and neck and ending at the armpit, the left hand beats the right arm and the right hand beats the left arm. Each meridian can be beaten for 5 to 7 minutes.
Stick to it for a period of time, and the black vertical stripes will gradually disappear with the growth of nails. Seeing that it has completely disappeared, the problems in the body will be fine.
I wish your wife a successful recovery!