Injection Site Reactions

I've just finished my first box of Brabio. Localised reactions have gotten increasingly worse. Nurse asked me to persevere for another couple of weeks, taking antihistamines etc and if no improvement we will reevaluate my treatment. However the main reason I am on this is because I am breastfeeding. Are there any alternatives? I don't want to wean right now, it'd be too stressful on us both. But I also don't want to not be on treatment as neuro said they wanted me on treatment asap as there seemed to be a fair amount of disease activity. Thanks x