Have had minor UTI's in the past (several years ago) but this one seems worse, all the usual symptoms, burning when I pee, feel like I need to go but only produce a dribble but also lower belly ache and quite a lot of blood in my urine. I have a couple of courses of amoxicillin 250mg in the cupboard (prescribed for DH's infected tooth but never used) and online research is recommending 500mg 3 times a day, would you just use them at the recommended dosage or do I need to bother OOH? I know I'm not allergic, very rarely take AB's so shouldn't be immune and it just seems silly to take up their time when they'll probably only give me what I already have in the house anyway. If there's no improvement by Monday I will obviously see my GP but don't want to bother OOH unless it's absolutely necessary.