Figure 4From: Intradermal administration of magnesium sulphate and magnesium chloride produces hypesthesia to mechanical but hyperalgesia to heat stimuli in humansChanges in experienced pain intensity by local cooling. After intradermal administration of 0.5 M MgSO4, Peltier probe was directly attached to the injection site. Pain intensity was substantially attenuated according to the cooling temperature. (n = 15)Back to article page