I did a gel polish Mani on a new client today, i started by sanitizing both our hands and carried out the treatment. As I got near the end and was putting on the top coat I noticed the skin around 1 nail was raised at the cuticle, i asked the client if she hurt her finger and she said "oh that's a wart I have it ages and it won't go".... it didnt look like a wart, I didn't react but in my head I was thinking what touched it and are my products contaminated. I don't have an autoclave but if I soak all my metal implements in barbicide will that be ok? I made sure to throw out the file and buffer . How do I bring up the problem with warts if this client books again?