Fillers are a popular cosmetic treatment but as Dr Sasha Bolin reports, things can go wrong – so what do you need to know before you start? It seems like everyone is having botox or fillers – or both. And all the hype could make you think there’s no risk. But the internet is awash with pictures of fillers gone wrong and doctors and aesthetic nurses say they are regularly fixing up other people’s botched work – usually done by untrained operators who’ve lured people in with cheap deals. Despite that, fillers are one of the most popular cosmetic treatments, and while…