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How Long Does Colic Last? Parents with colicky babies generally have one very important question and that is, How long does colic last? Colic is described as a baby who cries inconsolably for three or more hours per day at least three days per week. Colic generally begins between one week and six weeks of age and lasts up to three or four months. There are some babies whose colic will subside before this point and other babies who will be colicky up to six months of age. There is no hard and fast rule about when colic subsides, although the vast majority of babies find relief around three months of age.
Answer â In most patients, Botox lasts between 3-4 months. However, thereâs quite a bit of anecdotal evidence suggesting that itâs possible for patients to achieve results that last up to 6, 9 or even 12 months after consistent, long-term and properly-administered use of the Botox product. In other words, what determines how long the effects of Botox lasts is: 1  the dosage (and whether or not itâs been properly diluted) 2  the duration & consistency of use. 3  the skill/experience of the injector or surgeon who administers the injection.