Max Murison, a consultant plastic surgeon in South Wales, said that "we see people on a regular basis, probably monthly, where something terrible has gone wrong", as treatment has been done incorrectly, they have gone to someone not adequately trained, or tried to administer a product themselves.
He told our Correspondent Carl Edwards "these things can cause a lot of long-term harm, and we really need to protect the public."
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A warm and muggy night with showers, occasionally thundery in the south. These will gradually clear eastwards through the early hours
The world record for the largest scrum was broken in Cardiff today after 1,297 rugby players from across the globe took part.
Chris Coleman: Wales position 'something very special and close to my heart'.