by this means, and that the disease notwithstanding grows worse and worse, then must we come to make use of such things as receive argentum vivum, that by these we may resist the virulency which is ready to disperse it self over all the body; yet it is absolutely necessary that all these things be endued with such faculties as may return the malign acrimony of this venom, such an one is this following collyrium of Lanfrank. ℞. vini albi, lb i. aq. ros. & plantag. an. quart 1. auripig ʒii viridis. aeris, ʒi. aloes, myrrhae, an. ℈ii terantur subtilissimè, & fiat collyrium. Also these ulcers may be profitably touched with mercury-water, or aqua fortis which the Gold-smiths have used, or else mercury in powder, or our aegyptiacum: but the falling away of the Eschar shall be pro∣cured with basilicon, or fresh butter. Yet I think it not fit to use these acrid things without very great caution, for fear of a grangrene, which easily happens to this part: But if such ulcers are so stubborn, that they will not yield to these remedies, then must we come to the friction or unction of the groins, perinaeum, and ulcers, with the ointments formerly prescribed for the gene∣ral friction. Also sumigations may be made, as we mentioned in the former chapter: For thus at length the milignity of the virulent humor will be overcom, and the callous hardness mollified; and lastly the ulcers themselves cleansed, and being cleansed, consolidated. Some times after the perfect cure of such ulcers, there will appear manifest signs of the Lues Venerea in many, which shewed not themselves before, for that the virulency flowed forth of the running ulcers, and now this vent being stopt, it flows back into the body, and shews signs thereof in other parts; and these men have need of a general unction.