Why Does Scratching Make Itching Worse?

It’s hard to resist the urge to scratch an itch, but doing so could help break that vicious cycle of itchiness.

Hosted by: Stefan Chin

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Sources:
https://www.eurekalert.org/pub_releas...
https://www.scientificamerican.com/ar...
https://www.cell.com/neuron/abstract/...
https://www.ncbi.nlm.nih.gov/books/NB...
http://www.caltech.edu/news/microbes-...
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.nature.com/news/scientist...