I am 39 years old and have wrinkles at the corners of my eyes. Should I choose botox to soften them or fillers to plump them? (Nhu Quynh, Ninh Binh)

Mrs. Minh, 68, suffered from burning, aching pain due to post-herpetic neuralgia, leading to insomnia and weight loss, and received botox injections to alleviate her symptoms.

I have suffered from migraine headaches for many years, and painkillers haven't helped. Recently, I was advised to get botox injections. Why does this method help reduce chronic headaches, and is it safe? (Minh Thu, Dong Thap)