Muscle soreness does not need to be the result of an obvious or serious injury, as anyone who has done some unaccustomed exercise will know. Muscle soreness is due to a build-up of lactic acid in the muscle tissue. Herbal baths and massages can help relieve the soreness and speed recovery.
Add a strong infusion of rosemary (2 teaspoons of dried herb to one cup of water) to your bath. Alternatively, crush some fresh rosemary and a few black peppercorns, tie them into a muslin cloth and add to your bath.
If the muscle soreness is very localized, for example a sore arm after an afternoon's painting, soak a towel in a strong infusion of thyme and apply as a compress to the affected area.