What can a man do to satisfy his sexual desires when he cannot have relations with his wife?

I know the fact, that a husband and wife are told to distance themselves while a women is on menstruation, but what and how can a man satisfy his sexual desires?
I have come to a point where I cannot focus. I live near arctic circle and it is Ramadan and I can hardly get to have a private time. So now it has come to a situation, where I cannot focus on myself. What ways or method Islam has allowed to get over a situation like this besides wait?