This is an indicator of the relationship that you have with people around you. Generally, it represents the positive or negative influence that someone has over you. If the dream generates a feeling of anxiety, it reveals fear of this external influence or the excess value you place on the opinions of others. However, the dream can be telling you to inject more entertainment and determination into your life. The syringe is also considered a phallic symbol. What you need may be more enthusiasm on the sexual plane. Finally, injections symbolize healing and protection. In this case, you should think about the current state of your spiritual side. An oneiric interpretation from the thirties considered that dreaming of receiving an injection meant that you would be free of those enemies that plot against you.