Gábor M, Szalay L
Albrecht Von Graefes Arch Klin Exp Ophthalmol. 1975 Oct 17;197(1):67-70. doi: 10.1007/BF00506643.
Applying certain phlogistics (10% ol. sinapis, tinct. capsici, Dionin) and 1.5% histamine solution to the conjunctival sac of rabbits led to a mathematically significant decrease in conjunctival capillary resistance in every experimental animal. The effect occurred 20 to 30 min after application of the various pharmacons.