"Good." Snape murmured, stepping right up to Scorpius. The fingers of one hand went to his left eye, gently lifting the upper lid as he stared intently at the whites of Scorpius' eye, or perhaps at the sensitive inner surface of the eyelid. His other hand curled loosely around Scorpius' neck, cool fingertips pressing lightly into the notch of his throat, where the pulse beat strongest. He held that position for a long pause, drew a deep breath through his nose as if reaching to catch an elusive scent, then released Scorpius, nodding to himself.
He drew a silver knife from his pocket and pricked the thumbtip of Scorpius' wand hand, drawing a vial of blood before muttering a healing charm. Pocketing the vial, he handed Scorpius one of the vials of the new palliative. It was still warm from the cauldron.
"Any other symptoms?" he murmured, eyeing Scorpius intently all the while, though Merlin only knew what he was looking for.