An infallible remedy for toothache: wash the root if an aching tooth in vinegar, and let it dry half an hour in the sun.

对牙痛的一项万无一失的疗法是：把作痛的一根牙齿放进醋里洗净利，然后置于阳光下半小时使之晒干。

youdao

It ACTS as an excellent anodyne and anti-itching remedy for the relief of cold, influenza, rheumatism, gout, neuralgia, headache, toothache, mosquito bites and insect stings.

有止痛止痒的功效，用于减轻伤风感冒、筋骨酸痛、痛风、神经痛、头痛、牙痛、蚊叮虫蛟。

youdao

It ACTS as an excellent anodyne and anti-itching remedy for the relief of cold, influenza, rheumatism, gout, neuralgia, headache, toothache, mosquito bites and insect stings.

有止痛止痒的功效，用于减轻伤风感冒，筋骨酸痛，痛风，神经痛，头痛，牙痛，蚊叮虫蛟。

youdao

Its toxin is used as a heart stimulant and as a diuretic as well a remedy for sinusitis and toothache.

VOA: standard.2010.02.07

The remedy for toothache suggests cauterising the skin behind the ears before heating the plant henbane and leek seeds over hot coals and ensuring the patient inhales the smoke through a funnel.

BBC: Medieval teeth 'better than Baldrick's'