A gourd or vial of salve, which sells for 1 gp, contains 20 applications of odorless grease. One application protects its wearer against normal insects for 24 hours. The salve is waterproof so it doesn't wash off in rain.
A humble gourd holds a treasure within—a thick, odorless grease promising protection. With deft fingers, you smear it across your skin, a shield against buzzing nuisances.