What is the ruling on one who suffers from drops of urine leaking onto his clothes after urination, and does that affect his purity and acts of worship?

We ask Allah to heal you and relieve you of what you are experiencing. What has afflicted you may increase with the continuation of whispers (waswas) and doubts. Therefore, after urinating, you should gently squeeze the penis, then sprinkle water on the clothing adjacent to your private parts. Do not pay attention to the whispers. If you doubt, consider any wetness to be from the water you sprinkled on your clothes. In a few days, by Allah's power, this will depart from you.