Hyaluronidase is relatively safe when used properly, but improper operation may cause complications such as local redness, allergic reactions, or vascular embolism. The main risks of hyaluronidase include abnormal reactions at the injection site, contraindications to allergies, excessive use leading to tissue indentation, vascular damage, and infection risk.
1. Abnormal reactions at the injection site
After injection, temporary redness, swelling, bruising, or mild pain are common, which usually subsides on their own within 3-7 days. A small number of people may develop nodules or hard lumps, which are related to uneven distribution of drugs or local inflammatory reactions. Choosing a reputable medical institution can significantly reduce such risks, and operators need to be familiar with the distribution of facial blood vessels and nerves.
2. Allergic constitution contraindications
Prohibited for individuals allergic to hyaluronic acid or bacterial protein, and skin test is required before use. Allergic reactions can manifest as skin itching, urticaria, and even anaphylactic shock. Individuals with a history of severe allergies should proactively inform them to prepare antihistamines or adrenaline for emergency treatment if necessary.
3. Excessive tissue dissolution
Excessive injection may lead to loss of normal tissue volume, resulting in local depression or facial contour imbalance. The concentration and injection amount of lysozyme need to be adjusted according to the original filler type, and hyaluronic acid with high cross-linking degree requires higher enzyme activity. It is recommended to inject in small doses and observe the effect every 2 weeks before administering additional injections.
4. Risk of vascular embolism
Accidentally entering a blood vessel may cause vascular embolism, leading to serious complications such as skin necrosis or visual impairment. Special caution should be taken in dangerous areas such as the eyebrows and nose, and before administering, it is necessary to confirm that there is no blood return by drawing back. If pale skin and severe pain occur, the injection should be stopped immediately and thrombolytic measures should be taken.
5. Secondary infection may occur.
Improper operation may introduce pathogens, causing local abscesses or systemic infections. Strict disinfection is required before and after injection, and non essential injections should be avoided for immunocompromised individuals. When experiencing persistent redness, swelling, pain, or fever symptoms, it is necessary to seek medical attention promptly for anti infective treatment.
Within 24 hours after using hyaluronidase, avoid high temperature environments, intense exercise, and massage treatment areas. Cold compress can relieve swelling. It is recommended to choose a legitimate medical beauty institution with emergency qualifications, and to complete the preoperative evaluation of coagulation function and allergy history. Avoid repeated filling within one month after dissolution and allow sufficient time for tissue repair. If there are systemic symptoms such as visual changes and difficulty breathing, immediate emergency treatment is required, and daily care should pay attention to keeping the injection site clean and dry.
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