Side Effects and Complications
- Localized redness, swelling, and pain: These are the most common side effects and typically resolve on their own within 1 to 2 days after injection.
- Bruising: Blood vessels may be damaged during the injection process, causing localized bruising that usually subsides gradually within 1 to 2 weeks.
- Allergic reactions: A small number of individuals may be allergic to collagen, experiencing symptoms such as rash, itching, and difficulty breathing, which require prompt medical attention.
- Nodules and lumps: Uneven injection of collagen may lead to the formation of nodules or lumps, requiring treatment by a physician.
In addition to the aforementioned redness, swelling, pain, bruising, allergic reactions, and nodules or lumps, hyperpigmentation may also occur. Particularly in individuals with darker skin tones, the injection site may experience temporary darkening of pigmentation, which generally fades gradually over several months.