Problems and red flags
Care and safety · 4 min read
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Call 911 for hives with swelling of the face, lips or tongue, trouble breathing, or feeling faint after a dose. See a doctor today for redness that spreads, heat, pus, red streaks or fever (possible infection); severe belly pain or vomiting that won't stop (especially on GLP-1s like semaglutide or tirzepatide); chest pain or a racing heart; or sudden vision changes.
The vial or cartridge
- Won't dissolve: swirl gently and give it 15 minutes. Still cloudy or clumpy? Don't use it.
- Cloudy, specks, strings or a color change in a vial that was clear: don't use it.
- Foam from shaking: let it settle in the fridge; foam is air, not damage.
- Crystals in testosterone: warm and swirl until completely clear.
- Powder looks wet or melted: moisture may have got in. Check with the seller before using it.
The pen
- Drips after injecting: hold the button down for the full 10 seconds, and screw the needle on straight.
- Button hard to press or stuck: the needle may be blocked, so change it. Or the cartridge is empty.
- Air bubble in the cartridge: prime it out with 2-unit shots, needle pointing up.
- No drop when priming: check the needle's inner cap is off, try a new needle, and make sure the plunger rod was reset.
Your skin
- Stinging: common with BAC water. Let the liquid warm up and push slower.
- Red, itchy bump that fades within a day or two: a common local reaction. Rotate sites, let alcohol dry fully, and use room-temperature liquid. If bumps keep growing or last longer, stop and ask a doctor.
- Bruising: press lightly afterwards and avoid visible veins.
- Hard lumps under the skin after weeks in one area: overuse. Rotate more widely.
Log anything unusual in your daily check-in (Health → Journal). Helix and your weekly review can spot patterns, like reactions after a dose change.
Go with this guide
Daily check-inGeneral how-to information, not medical advice. Follow your prescriber's instructions where they differ.