For immediate relief, cut back on the mileage and try some damp heat: hot baths or the steam room. Heating pads and heat rubs may help somewhat, but wet heat seems to work better than dry.

And the city is also full of great Turkish baths where you hang about semi naked for hours, popping in and out of the saunas and steam rooms and sipping mint tea.

Also, regular steam baths or saunas can help to sweat the toxins out.