My husband has had red bood and worm like clots in his urine he has had it for about 5 days.he was given antibiotics from his gp 2 days ago. is it safe for us to go on hokiday abroad on wednesday and how long before antibiotic will work. he is 60 years

I'm uneasy about it: Your doc did the correct thing, because the most common and treatable cause is infection. However, if no effect and cultures are negative in a few to sev days, i would look for different causes like a stone, cancer, or kidney inflammation. Need urinalysis and culture if not done. If no better, need a urologist care. If it was my problem, i'd go no where till I am clear of gross hematuria =bl/urine.