I'd cut it right down & let it grow up again from the bottom 3or 4 inches. Make cuttings of the good tips & put all in a nice light warm place. Don't over water. Can't tell from the photo, but looks a bit wet. Maybe some fresh, drier compost?

Thanks feverfew.

I agree with Feverfew, but they do tend to be more leggy than the none scented ones.
They do look a little wet.

It also looks a little starved for light, to me. It will need hardening off to the sun, but some direct morning sun will probably help.