Stomach flu or gastroenteritis infection signs and symptoms include nausea, vomiting, and diarrhea that lasts for about 7-14 days. The stomach flu is spread from person to person, usually via fecal to oral route from poor hand-washing or hygiene techniques.
Location: Egypt. Posts: 1,672. Re: How long for meds to take effect. It takes from 1 to 2 days in order for your high bp meds to work, but it reach its maximum effect in 1 week and some times it takes 2 weeks. They said that but I think it's only a week, not more than that.
Usually antibiotics start working in 24-36 hours.However, when the infection is in atooth or jaw (bone) it takes longer merely because the blood supply is not as good in that kind of tissue .Warm compresses help to increase the blood flow into the area and carry the meds to the area.Karen James.