Out of aforesaid derangements among the four factors, one should know that it is easier to correct the vitiation of vayu, jala and desha, than of udaka, desha and kala.
कालान्तेषु यदा नराः| भेषजेनोपपाद्यन्ते न भवन्त्यातुरास्तदा ||१२||
[General treatment in epidemics] In spite of vitiation of the four factors ending with vitiation of time (season), one need not suffer from diseases provided they are assured of proper medicaments which are already collected and processed.
येषां न मृत्युसामान्यं सामान्यं न च कर्मणाम्| कर्म पञ्चविधं तेषां भेषजं परमुच्यते ||१३||
Those who did not engage in identical acts in their prior lives and those who are not destined to die during calamities, for their cure, five elimination therapies (viz., emesis, purgation, enema- niruha and anuvasana types and errhines) are considered the best.
For them, the proper use of rasayana chikitsa (rejuvenation treatment) is recommended and maintenance of the body by means of medicinal herbs collected before the onset of epidemics is recommended.