Pain is a major source of distress for children and their families as well as health care providers. Skin tapping (Helfer skin tap technique) is one of the methods which keeps the muscles relaxed and thus reduce pain while administering IM injection. The objectives of the study are to assess the pain level among infants during intramuscular injection both control and experimental group. To find out the effectiveness of Helfer skin tap technique in the experimental group and to associate the pain score with demographic variables. Methods Quasi-experimental design used in this study Comprised of 60 infants selected by purposive sampling technique, 30 in experimental & 30 in the control group came in Immunization clinic in IGMC & hospital, Shimla. HSTT used in experimental group & routine technique in the control group. The pain was assessed by the FLACC pain scale. Results: The result revealed that 66.7 % of the infants in the experimental group had mild pain, only 23.3% perceived moderate and no any one perceive severe pain during IM injection by using Helfer skin tap technique. 40 % of the infants in the control group had severe pain, 46.7% perceived moderate pain, only 13.3% perceived mild pain during IM injection by using a routine technique. The present study findings supported that there is a significant difference in pain score in the IM administration with Helfer skin tap technique. The conclusion of the study proved that Helfer Skin Tap Technique was effective than the Routine Technique in administering IM Injections. It was concluded that the perception of pain intensity is less when intra muscular injection is administered by using Helfer Skin Tap Technique. It works on a theoretical basis such as gate control theory.