Below are the main rubriks (i.e strongest indications or symptoms) of Lachesis in traditional homeopathic usage, not approved by the FDA.
Sore, Worse left side, swallowing liquids
Dry, intensely swollen, externally and internally
Diphtheria; membrane dusky, blackish; Pain aggravated by hot drinks; chronic sore throat, with much hawking; mucus sticks, And cannot be forced up or down
very painful; worse slightest pressure, touch is even more annoying
In diphtheria, etc., the trouble BEGAN on the left side
Purple, livid color of throat
Feeling as if something was swollen which must be swallowed; Worse, swallowing saliva or liquids
pain into ear
collar and neck-band must be very loose.≡ more ...