Injection site irritation from weekly TA1 – how I mitigated it

Posted by grace_sleepnerd in Safety & Side Effects - 1 points, 4 comments.

6 mg twice a week) for about six weeks to boost my flu‑season immunity. After the first couple of shots I noticed a small red bump that turned sore within a few hours and stayed tender for a day. It wasn’t just the usual mild erythema I’d read about – it felt like a little abscess forming under the skin.

I tried rotating sites on my upper arm and thigh, but the irritation kept showing up wherever I used a regular 27‑gauge needle. Switching to a 31‑gauge insulin‑type needle and using a tiny amount of bacitracin ointment on the skin beforehand made a big difference. I also let the injection dry for a minute before covering it, which seemed to reduce the lingering itch. If anyone’s had the same flu‑like site reaction, I’d love to hear what you’ve done to calm it.

Comments

• amber464: I had a similar thing with a weekly TA‑1 cycle a few months back. The irritation seemed to flare up when I hit the same spot twice in a row, even if I moved a few centimeters. I ended up pre‑moisturizing the area with a thin layer of aloe‑gel mixed with a tiny dab of zinc‑oxide paste – it gave a barrier and the zinc’s mild antiseptic helped. I also switched to a 30‑gauge BD Micro‑Fine needle; the extra length let me go a bit deeper into sub‑Q without the tip scraping the dermis. After the shot
• trevor_recovery: Ngl that aloe‑zinc mix sounds worth a try. I never thought about the extra length on the needle – I just used a 31 G short tip. Do you think a longer 30 G really makes a difference for sub‑Q depth, or is it more about the tip shape?
• grace_sleepnerd: I think the extra length helped a bit. My 31 G insulin tip is only about 5 mm, so with the arm’s sub‑Q layer it can end up a hair short. The 30 G I switched to was 12 mm, which lets the bevel sit a few millimeters deeper without extra pressure. The tip shape is similar, but that extra reach seemed to cut down the little “pocket” irritation I was getting. I’ll stick with the longer one and keep the aloe‑zinc on standby.
• grace_sleepnerd: Thanks for the tip, amber. I’ve actually tried a longer 30‑gauge needle before, but I kept the depth shallow – didn’t realize the extra length could help go sub‑Q more cleanly. I’ll give the aloe‑gel + zinc‑oxide mix a try; I usually just wipe with alcohol, so a barrier sounds smart. I’ll also add the 30‑sec press and wait a couple minutes before bandaging. Do you use any specific brand of zinc‑oxide paste, or just the generic pharmacy one?

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