Wye Valley NHS Trust

Injection site reactions include redness, itching, pain or swelling at the injection site. They mostly occur 1 to 2 days after an injection and go away within 3 to 5 days. Change the injection site each time you inject (e.g. rotate from one leg to another leg). Apply a cold compress to the injection site. Antihistamine tablets can help. If you continue to experience problems please contact us and we will be able to provide you further advice.