Woodwards gripe water contains oil of dill herb and sodium hydrogen carbonate and brings relief of wind and gripe dill oil warms and relaxed the tummy breaking down trapped air bubbles whilst the sodium hydrogen carbonate neutralises acid in your babys tummy the results are usually a resounding burp gripe is caused by muscle spasms and excess acid created when air bubbles form in a babys tummy when the air bubbles get trapped in a babys stomach the stomach thinks it is full of foo