Aspirin does enter the blood, but then it acts selectively on pain and inflammation. Not 'til the 1970s did pharmacologists figure out how it did that. Aspirin attacks a certain fatty acid that serves as an early warning system by increasing the sensitivity of pain receptors. Aspirin turns those painful warning bells off. The world is neither simple nor obvious, and its secrets will be kept from us as long as we fail to ask.
Whey contains sugar, minerals, protein, and nutrients.
It's part of what you pay for when you buy yogurt. So you definitely want to mix it back in. Puppeteers, it seems, reach upward to carry a puppet, like a glove, on their right hand. They use their left hand to operate wires that control the arms. It's a lot easier to give the dominant action to the puppet's left hand.