Final answer:
Psoriatic arthritis does not affect a specific toe most commonly as gout does with the big toe. It can involve swelling of any toe and other joints, with treatment options including medications and exercise.
Step-by-step explanation:
The most commonly affected toe in psoriatic arthritis is not as distinct as it is in other types of arthritis, such as gout, which commonly affects the big toe. Psoriatic arthritis can affect any of the toes but tends to cause sausage-like swelling of the entire digit known as dactylitis. This disease is categorized by inflammation of the skin (psoriasis) and the joints (arthritis).
While any toe can be affected, the condition is not limited to the toes and can affect other joints of the body as well. This can lead to joint damage and pain, requiring a range of treatments to manage symptoms including exercise, anti-inflammatory medications, and disease-modifying anti-rheumatic drugs.