Shotblocker and Breastfeeding on Pain/Comfort During Heel Lance

Inclusion Criteria: * Birth week is between 34-42 weeks, * Postnatal in the first 10 days * Birth weight is between 2500-4000 grams, * Stable general condition, * Being with her mother and literate, * Breastfeeding, * Newborns of mothers who agreed to participate in the study Exclusion Criteria: * In need of oxygen support, * Unsuccessful heel lance attempt, patients whose heel lance cannot be taken in 30 sec.(in groups with shotblocker) * Needing parenteral nutrition, * Receiving analgesic treatment, * Having physical, metabolic and genetic diseases, * Having a mental or mental health problem in the mother * Non-breastfed newborns * Newborns hospitalized in the 3rd and 4th level neonatal intensive care unit