P- A limitation of behavioural therapies, including flooding is that they only mask symptoms and do not tackle the underlying cause of phobias (symptom substitution)
E- For example, Persons (1986) reported a case of a woman with a phobia of death who was treated using flooding. Her fear of death declined, but her fear of being criticised got worse.
L- This suggests that even though the symptoms are removed, the cause still remains and symptoms will resurface, possibly in another form.