Baby SPA application time: It is done regularly from the first month, at least once a month. The ideal time for application is the first six months. The water in the tub is prepared to be 33°C. The baby, whose clothes are taken off, wearing a waterproof diaper suitable for the tub and a neck ring, is taken into the tub. The application usually takes 10-15 minutes, depending on the baby's reactions to the water for the first time. After the parent and baby get used to the process, the time can be increased to 30 minutes. In this process, the baby's hands, abdomen, and legs are made to recognize the water and the baby's movements are monitored. Care is taken that the baby does not drink the water. After the application period is over, the baby is removed from the tub and dried with a towel. Finally, the baby is massaged for 10-15 minutes and dressed.

Massage can be applied to all age periods. Before starting the massage application in babies, some preparations are made. Ambient temperature (24-26 OC) is adjusted, it is regulated so that there is no airflow, dim light, and low noise levels are ensured. 1-2 towels, a soft cushion or massage table, baby oil lotion, clean diapers, and clean clothes are prepared for the massage. There is no standard time interval for the application of massage. It can be done at least one hour after the baby's feeding, at any time of the day when he is not stressed and sleeps. Massage application time is 15-30 minutes depending on the baby's reactions may vary between.

It is the control group in which no intervention was applied.

"Salus Per Aquam", "Sanitas Per Aquam", "Salut Per Aqua" or "Solus Per Aqua" (SPA) means health that comes with water. Baby SPA is a physiotherapy method that stimulates the baby's motor movements through water (hydrotherapy) and performs it in an integrated way to balance the body, mind, and emotions. Baby SPA is applied in specially designed bathtubs. The size of the tub is designed in such a way that children can move their hands and feet freely and not be narrow. A neck ring/ring is used to keep the baby on the water surface during SPA treatment.

The researcher will collect the research data at Van Aquarium Baby SPA and Van İki Nisan Caddesi Private Clinic Center. For the experimental groups, once a week for a total of four applications, the application will end at the end of a month. Introductory Information Form, Infant Colic Scale, and Infant Colic Symptoms Follow-up Form will be applied to the individuals in the experimental and control groups to collect data. Items in the infant colic scale are graded on a Likert-type score from 1 to 6. The rating ranges from 1 (strongly disagree) to 6 (strongly agree). A low mean score from the scale indicates a decrease in colic, while a high mean score indicates an increase in colic. The Baby Colic Symptoms Follow-up Form is a form that measures the duration and frequency of changes in the baby's colic symptoms. If the time and frequency are reduced, it is concluded that the application is effective.