The cure for coulrophobia exists and almost always consists of psychotherapy.
and rejection.The movements are deliberately caricatured
Another element of discomfort is represented by the "unnatural gait of clowns. Clumsiness in movements and extravagant clothes are interpreted as characteristics of a person who is unpredictable or ambiguous in intentions.
Clowns are unpredictable
In popular culture, the clown and his "ancestors", such as the jester, have always been attributed an ambiguous nature: from funny and amusing these figures can become irreverent and crazy.
In the collective imagination, clowns are mischievous and spiteful figures, therefore from the interaction with one of them we expect jokes or unpredictable situations, such as a trip or a cake in the face. This "suspicion" can fuel a certain discomfort or a kind of alert when one encounters one.