When I first started Retin-A 0.05% I applied it on my cleavage and I think it went a bit too far down. Only done it about twice, but there is now a red mark (looks a bit like a big red birthmark) between my chest. I'm a bit worried cos it's been over 2 weeks now and it's not getting better. I put Vitamin E and La Roche Posay Cicaplast Baume on it but no improvement.
Thing is my face is taking it really well, so I don't know why this is happenening. Anybody got any ideas what to do about it?