If you are suffering from the urine drops after urination then you should put any thick cloth under your underwear after urinating which could absorb the drops of the urine. And when it is stopped then you should remove it and wash the part. And in other times if you observe drops then you should put this cloth permanently and remove it and wash the part before offering the salah. And then you can perform wudhu and offer salah. And in case you experience it very often then write the complete situation of your problem and submit the query again.
Allah knows Best!
Darul Uloom Deoband