This case is from a contemporary mainland Chinese master. He asked about his own tonsil surgery. It hurt so much after the surgery, that he divined for his own illness.
Month Si, Day Ding Chou. Void: Shen and You.
You Metal Child ▅▅ ▅▅ S
Hai Water Asset ▅▅ ▅▅
Chou Earth Sibling ▅▅ ▅▅
Mao Wood Officer ▅▅ ▅▅ O
Si Fire Parent ▅▅ ▅▅ ╳ Chen Earth Sibling ▅▅▅▅▅
Wei Earth Sibling ▅▅ ▅▅
Yong Shen is You Metal as Child, and it comes right on Self line. It is overcome by Month Si and void. Luckily, Chou Earth can produce the Self line. This illness should not get any worse.
Result: indeed so, and his illness was cured on Jia Shen Day, which is 7 days after.
Note: this case is one example where a void line can receive support from the Month or Day (in this case Day Chou).