A 38-year-old woman from Ninh Binh, advised on collagen thread lifts for sagging facial skin, asks about the procedure's efficacy after one to two years and whether her skin will sag once the threads dissolve.

Anh Thuan, 32, received triamcinolone injections from doctors to flatten hard, bumpy keloid scars on his chest, caused by inflammatory acne, which also helped reduce itching.

Hung, 20 years old, who suffered from nasal acne scars for many years, has now seen significant improvement after doctors performed subcision combined with laser treatment and trichloroacetic acid application.

Melasma results from numerous factors, including genetics, hormones, sun exposure, medication, and cosmetics, making it challenging to manage with routine skincare alone.