I have a slight enlargement of prostate gland. Sometime after passing urine, and waiting for long, few drops of urine comes out when you get up.
With that, I feel awkward to go for Salaah. I don’t have any provision for taking bath or changing cloth. So miss many Salaah in a day. Is there any way by which, I can continue my prayer, without doing Qaza.

Praise be to Allaah. 

If
you pass urine or drops of urine, this does not mean that you have to do
ghusl; what you have to do is make wudoo’ and wash only the parts of the
body and clothing (on which the urine has fallen).

If
the situation you describe, the occasional emission of a few drops of
urine, is beyond your control, then your case is like that of one who is
incontinent, so do the following:

1.    
Wash
the private parts with water.

2.    
Wash
the part of your clothes that the urine has gotten onto (there is no need
to change your clothes).

3.    
Put
a pad or a piece of cotton, or  something
similar, over the private parts so that the urine will not spread.

4.    
Do
wudoo’ for each prayer, then pray as you are, and pray as much as you
like, fard and naafil, with this wudoo’. After doing this, anything else
that comes out does not matter. Allaah says (interpretation of the
meaning): So keep your duty to Allaah and fear Him as much as you
can…” [al-Taghaabun 64:16].

Do not miss any prayers or delay doing them on time, and your prayer will
be valid.

 This is what should be
done in the case of incontinence, but if the urine comes out shortly after
urinating, then it stops, in this case you can go to the bathroom fifteen
minutes before the prayer or the adhaan, for example, then put something
(a cloth, etc) to prevent contamination after you do istinjaa’ (cleaning
yourself after relieving yourself), do wudoo’ and pray. And Allaah knows
best.