What are the usage methods and precautions for iodine tincture?

The method of using iodine tincture involves applying it to the affected area with a cotton swab. General precautions include avoiding contraindications, properly caring for the affected area, and not using it on damaged or broken skin. Detailed explanations are as follows:
1. Method of Use
Iodine tincture is a common topical medication composed of iodine and potassium iodide, known for its disinfectant properties. It is typically used for preoperative disinfection of unbroken skin, as well as for anti-inflammatory and swelling-reduction purposes. To apply, dip a cotton swab into a small amount of iodine tincture and gently spread it outward from the center of the affected area. After several minutes, wipe off the iodine with 70% alcohol to prevent prolonged irritation or damage caused by iodine residue and to reduce the risk of pigmentation.
2. Precautions
1) Avoid drug contraindications
Carefully read the instructions before use. If you are allergic to any component of iodine tincture, do not use it to avoid adverse reactions.
2) Proper care of the affected area
During treatment, maintain cleanliness and dryness of the affected site to prevent bacterial growth and ensure optimal effectiveness of the medication.
3) Do not use on damaged skin
Avoid applying the medication to areas where the skin is broken or ulcerated, as this may irritate the wound and impair healing.
Patients are advised to use iodine tincture under the guidance of a healthcare professional. If discomfort occurs after application, discontinue use immediately and seek medical evaluation.