“Kidney stones 4 mm on mouth of bladder?”

I am a seafarer and before joining I did a CT scan and I was diagnosed with a kidney stone of 4mm stuck at the mouth of the bladder. I was given a fit to sail certificate as the doctor said that it's on the verge to pass.

For the last 2 days, I am having the frequent urge to urinate and tickling sensation near my genitals. Also, I passed very little blood during urination. Is it a good sign?

For the medicines, I am taking- Norflox 400- twice daily, Meftal Spas- Twice daily, and Alkacip syrup- twice daily.

Kindly advise if I am going to succeed in eliminating the stone.