Urinary tract Infection. What can i do?

What can I do my UTI is now at my urine is clear and forcefully and not yellow in urine color my all reports is ok like Ct scan I have done Sonography all I have done nothing is serious my doctor said I take water 2 to 3litres per day can I take any medicine for UTI problem h sometimes I have urgently need to toilet and every 20 to 30 minutes what can I do? Now m contact with homeopathic doctors one medicine is available in homeopathy is Cantharis can I take or not please advise me. My problem is sir maybe bacteria or Infection is my Available in Toilet area. My all reports is ok like blood, CT everything m too panic in these days BCoz I can't do any work BCoz of urine problem what should I take or not please advise me tea is not good to take anything you know please advise me.sodas cigeratte what can I quite.my toilet is ok no pain nothing only problem is maximum toilet happened sometimes and sometimes m  ok den again the problem is start 3 litr water I drink also boil water Drink