My doctors are closed and can't get through on the nhs number but Romans skin tag (normally the same…

My doctors are closed and can't get through on the nhs number but Romans skin tag (normally the same colour as his lips) has turned this colour just now. I don't know what's happening with it :/ my health visitor when she came had a look when it was normal colour and said not to worry about it and that it should go but who can i get hold of now while it's like this??