Use olive or coconut oil on it! if that doesn’t work use ice
I would say something that makes you use the spinal cord the most (if you catch my drift)...
Creatine kinase (CK) is an enzyme found in the heart, brain, skeletal muscle, and other tissues. Increased amounts of CK are released into the blood when there is muscle damage. This test measures the amount of creatine kinase in the blood.
The person you are sharing them with may be sick or have something and by sharing those they could pass it onto you