Astanga Hrudaya
आगन्तुं शमयेद्दोषं स्थानिनं प्रतिकृत्य वा। प्रायस्तिर्यग्गता दोषाः क्लेशयन्त्यातुरांश्चिरम्॥२१॥
Agantu Dosha – Foreign Dosha, should be treated either after treating the Sthanika (native Dosha) or even otherwise. The choice of Dosha, to be treated first depends on the level of aggravation and strength of Doshas.
english translation
AgantuM zamayeddoSaM sthAninaM pratikRtya vA। prAyastiryaggatA doSAH klezayantyAturAMzciram॥21॥
hk transliteration by Sanscript