๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Intralesional corticosteroids
Intralesional corticosteroids
A solution of triamcinolone acetonide at a concentration of either 10 or 40 mg/mL can be mixed with 1% to 2% lidocaine with epinephrine in a ratio of 1:1.15 Depending on the size of the lesion, 1 mL of triamcinolone or 2 mL of the combined solution per nodule or plaque is sufficient. The solution is directly injected into the inflamed nodule, using a syringe with a 1-in 30-gauge needle. When a single nodule is difficult to identify amid an area of inflamed, indurated tissue, the corticosteroid solution should be injected into the center of the indurated and erythematous area. If the diameter of the inflamed erythematous area spans more than 4 cm, the solution can be evenly distributed over two injection sites, infiltrating approximately 1 mL in each site.