I had a small brown worm in the toilet when I urinated 4 days ago, I didn t check the bowl before going so I don t know if it came from me. I saw my pharmacist and he gave me a single dose tablet of Ovex which contains mebendazole. I haven t seen anymore worms so far, however, I did have white clumps and threads on my stools the next day after taking the tablet. I ve experienced anul and vaginal itching at night, certainly since taking the tablet, however this has happened before I did so on occasion. I have had disturbed sleep and clench my teeth at night, I thought this may have been due to stress and hot weather. Now 4 days after taking the tablet I have blood in my urine which indicates and infection or a reaction to the tablet. Will antibiotics affect the Ovex and put back my worm treatment? Is it time to see a urologist to sort out the worms and the, possibly, secondary infection? Any ideas? Thanks