Most likely site injections , either with a fast acting test like proprinate , or esiclene , either way it would be dammmmm uncomfortable and sore as they do look very inflammed !!
Ive tried this both with prop and esiclene and it caused me so much discomfort I only tried it once and learnt !! (mind you I am a pussy ), actualy made me feel like I had a Flu !!