Injection at poly

Hi mummies! My baby is due for 5-in-1 injection on 7 April at poly. Previously i went for the first injection in February with my mum, the nurse told us that only one caregiver is allowed to come in but i realised that there are many other people coming in together with another person. Super annoyed as i had a very hard time dealing with a cranky baby alone. So this time i want to check if my husband is allowed to come with me for my baby’s injection?