This is an IM Kenalog shot which is a corticosteroid for the treatment of sever hay fever sufferers.  When all the alternative treatments seem ineffective then perhaps having this treatment could help ease your suffering.  Hay fever happens when your body mistakes allergens such as pollen to be harmful and you experience an allergic reaction as a result where the immune system goes into override resulting in itchy watering eyes, runny nose and sore throat.  The Kenalog shot dampens that immune response to ease the symptoms.