Lin Dong took out the acupuncture bag he carried with him from his bosom.
Then, he took out a gold needle and a silver needle from the bag.
Immediately, he channeled his inner Qi into them.
Above the gold needle, the inner Qi formed cold ice that enveloped the needle, causing the surrounding temperature to drop significantly.
On the silver needle, the inner Qi formed a strand of flame that wrapped around the needle, raising the temperature around it once again.
The gold and silver needles, one hot and one cold, one icy and one fiery, were two extremes.
Lin Dong walked over to Qiao Bing, squatted down, and lifted her clothes.
He then thrust the needles into two acupoints on her back.
Qiao Bing had been unconscious, but as the two needles pierced her, she immediately awoke.
After awakening, she saw Lin Dong treating her illness.
At the same time, she felt two streams of Qi flowing inside her body.