Any cure for irritated bowel syndrome?

No. There is no "cure" but there are plenty of medications which can help control symptoms depending on what kind of ibs you have.
Control of IBS. Irritable bowel syndrome (ibs) is a constellation of GI symptoms that run the spectrum from diarrhea to constipation (& alternating stool pattern), abdominal pain, bloating, cramps. Ibs can be worsened by stress, certain food intolerances, concurrent infection. Some patients have sibo (small bowel bacterial overgrowth). Fyi re: drug/diet, i recommend reading "relief from ibs" by elaine shimberg.