an inflamed blister in or near the mouth, caused by infection with the herpes simplex virus
a bruise or sore on a horse’s back, caused by pressure or chafing of an ill-fitting saddle
an issue about which someone feels distressed or annoyed and which it is therefore advisable to avoid raising with them
a form of leishmaniasis occurring in Asia and Africa, causing open ulcers
a person or thing that one is extremely pleased or relieved to see
(of a person or animal) having raw and painful feet from much walking
be very obviously different from the surrounding people or things