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The pulse generally covers the six positions, encompassing exterior and interior, yin and yang. The magnitude of the pulse on the left hand distinguishes the abundance or deficiency of blood; the magnitude of the pulse on the right hand distinguishes the abundance or deficiency of qi. For children above seven years old, five beats per respiration is the normal pulse (Ping Mai). Exceeding this indicates a rapid pulse (Shu Mai), signifying excess pathogenic factors; falling short indicates a slow pulse (Chi Mai), signifying deficiency of healthy qi. A tight pulse at the Renying point (ST9) indicates external contraction; a rapid pulse at the Qikou point (LU9) indicates internal injury. A floating and rapid pulse indicates exterior heat; a floating and slow pulse indicates decline of yang qi; a deep and tight pulse indicates interior heat; a deep and thin pulse indicates depletion of primordial qi. However, smallpox is a yang disease, so the pulse should be slightly full and forceful in both superficial and deep positions. If it is weak and powerless, it represents a yang disease presenting with yin pulses, which is definitely an ominous sign. As for pulses that are floating without root, rapid like a sparrow pecking, thin and about to scatter, lingering like a spider's thread, slow and about to cease, dripping like water leaking from a roof, or deep appearing occasionally like a fish jumping, these are all death pulses. The *Mai Jue* (Pulse Classic) also states: "Gentle and slow like spring willows, this is the spleen dwelling in the four seasons." This implies that the yin and yang pulses in all six positions must possess Stomach Qi (Wei Qi). The Stomach is the head of primordial yang and the root of the zang and fu organs. Therefore, those with quiet pulses, cool bodies, and clear spirits survive; those with restless pulses, hot bodies, and irritability die. However, the pulse before and after the seventh day of smallpox differs. Children's pulses often carry tightness and rapidity. Regarding smallpox, from fever until the eruption stage, when toxins emerge from within, it is a yang manifestation. The pulse should particularly be floating, large, and rapid, not deep, thin, and slow. After crusting, when toxins resolve from the exterior, it is a yin manifestation; the pulse should be harmonious and slow, not full and rapid, but merely peaceful and spirited, avoiding emptiness and largeness without strength. Thus, before the sixth day, the pulse should be active; after the sixth day, it should be quiet. Besides the six positions, there is also the Chongyang pulse (ST42), which is the stomach pulse; and the Taixi pulse (KI3), which is the kidney pulse. The Stomach is the master, and the Kidney is the root; these two pulses are most critical. If the pulses in the six positions cannot be felt, making life and death difficult to distinguish, one should urgently examine here. If they are gentle and orderly, unbroken and unhurried, healthy qi remains, and there is still hope for recovery. If these two pulses vanish first, even if the six pulses remain, it is an ominous sign. Comparing the two, the Taixi pulse is more important than the Chongyang pulse. Although smallpox diagnosis primarily relies on observing form and color, without pulse diagnosis, how can one determine the true condition of organ deficiency/excess and cold/heat to ensure accurate treatment? (The Chongyang pulse is located three cun above the depression between the first and second toes, where the arterial pulsation is felt; the Taixi pulse is located below the medial malleolus, where the arterial pulsation is felt.)