Bones watched Spock spasm in sickbay after giving him the serum. It felt... unnatural to see the Vulcan completely out of control of his body. It reminded him of when Spock had had the pon farr and thought he had killed the captain. Unpleasant times for them all.
The doctor noticed that Spock had stopped moving and went to help him off the floor. "You okay?" he asked. "Didn't bump your head or anything, did you?"
Spock took a deep breath and said, "I am coming back to normal I believe, Doctor. My sensitivity to cold is decreasing and my eyesight is improving."
"I'm glad to hear it," Bones said. "You'd better get back to your post, I'm sure the captain's anxious to have you back on the bridge."
Spock placed his hand on Bones' shoulder with some hesitation. "Thank you," he said firmly. "For staying with me during the serum." Then he turned and was gone before the doctor could reply.
Nurse Chapel came out of the office. "The cure worked?" she asked.
"Yep," Bones said. "I'm sure he'll be back to his cold, calculating self in no time."
Chapel shook her head. "That isn't very nice, Doctor."
"You misunderstand me, Nurse," Bones said, smiling. "It's a compliment."