एवं कृच्छ्रतमा नॄणां दृश्यन्ते व्याधिसङ्कराः | प्रयोगापरिशुद्धत्वात्तथा चान्योन्यसम्भवात् ||२२||
Combinations of diseases in human beings are usually very difficult to treat, owing to the complexity of the line of treatment, and their serving as causative factors of each other.
[Ideal therapy without adverse effects] A therapy that alleviates one disease condition but provokes another disease is not shuddha (or is an impure or incorrect therapy). The ideal therapy is that which pacifies a disease without provoking any other disease.
एको हेतुरनेकस्य तथैकस्यैक एव हि | व्याधेरेकस्य चानेको बहूनां बहवोऽपि च ||२४||
[Diagnostic aspect of etiological factors] One causative factor may cause one or many diseases. Many causative factors may result in a single disease or may cause several diseases.
It is seen that a single causative factor, ruksha (dry) can cause many diseases such as jwara (fever), bhrama (vertigo) and pralapa (delirium) etc., while the same single factor (ruksha) may cause just one disease (jwara)