The main symptoms of psoriatic arthritis include joint pain, swelling, and stiffness, often accompanied by psoriatic lesions on the skin. If you experience any of these symptoms, it is recommended that you seek medical attention promptly.

Specific symptoms may include:

1. Joint discomfort: Common symptoms include pain or tenderness in joints such as fingers, toes, and knees, which may worsen with activity, and some joints may become red and swollen.
2. Morning stiffness: Joint stiffness is noticeable in the morning or after sitting for a long time, which can be relieved after moving around for a while.
3. Skin changes: Most patients have skin erythema and silvery-white scales, commonly found on the elbows, knees or scalp.
4. Swelling of fingers and toes: The fingers or toes may swell as a whole, resembling sausages.
5. Limited range of motion: As discomfort persists, the range of motion of the joint may gradually decrease.
Daily advice includes keeping joints warm and avoiding overexertion; engaging in gentle activities such as walking under the guidance of a doctor; and seeking medical attention as soon as possible if joint swelling and pain persist or skin abnormalities occur, in order to alleviate discomfort through proper management.