hello Hendrika..thanks for your query
I do understand your concerns regarding the pain and well as the stress
due to multiple occurrences.
It is important to understand that psoriasis
and its outcomes are triggered by stress ,however , the pathology occurring is not only due to that.The exact causes are not yet known, but a number of genetic associations have been identified for psoriasis and psoriatic arthritis
.Hence , it is important to take the medications and stop them only after proper medical advise .In many cases, a smaller dose of the same medication helps in maintaining the remission and keeps you debility free.
Exercise is advised to many suffering from this concern as this helps in improving the symptoms and maintaining remission .However, any kind of exercise should not be started /pursued without advise and supervision of physiotherapist.So you can consult one and learn what kind of exercises are suitable for you .Hope this helps.Take care..