From his sickly pale complexion and his motionless sitting position, along with the medicine smell wafting from the secondary bedroom, she guessed that his lower limbs might have been paralyzed for a long time.
Paralysis might not be curable even in modern times with high-tech equipment and many people are paralyzed for life.
She knew Second Brother and Petty Cat, both of them treated Fourth Brother very well, they must have spent all their money to find doctors to cure him.
If other doctors couldn't cure him, and if his paralyzed leg had no sensation, she would definitely not be able to cure him either. Only if the leg still had sensation, there would be a chance.
Moreover, she was deaf now, which was inconvenient.
She would wait till she cured herself first, then help him with his meridians before she left.