Right, so that's what needs clarifying — do they show up solely where the shots go in, or elsewhere too? Should they appear in other places, then the medication has to be discontinued. GLP drugs can trigger a whole range of cutaneous adverse drug reactions, or rashes of the skin variety, and a few of those may be severe or serious ( potentially affecting internal organs too ). While unlikely, it is possible — particularly when they show up shortly after an injection — that they signal anaphylaxis. Reactions that cross over between different GLP drugs are uncommon, though not out of the question, so switching to reta ought to be okay.
Should they be confined to injection sites, then it comes down to their severity or discomfort level and how long they persist. If they are irritating enough, stopping or moving to reta might be necessary. Localised ISRs are extremely frequent, at least 5%. The bac could theoretically be the culprit — simply inject the bac alone and you'll get your answer.
( After I developed a skin rash just over a year ago that was really hard to pin down and may have come from ozempic, I went through everything published online about skin rashes tied to GLP drugs and plenty of other medications. It turned out not to be that, and even the specialists struggled — they more or less had to invent a vague-sounding label for it, and that was after 3 biopsies plus blood tests. Something like an unusual rosacea or odd neurovascular rash. I still have it, no treatment, and fortunately it isn't too severe — it was just maddening not being able to get a diagnosis. )
