Why Do I Have Pimples Turning Into Acne Marks?

Hair loss can occur due to several reasons like stress, bad diet, or genetic factors. The signs of it are thinning hair or bald patches. To help your hair grow back, try eating a balanced diet rich in vitamins and minerals, reduce stress, and use gentle hair care products. It can be a slow process, but hair may recover with careful treatment and perseverance!

Without a proper evaluation and diagnosis, I can't say. But normally, suggested treatments for perical pigmentation include topical medications and laser treatments and I do not recommend flutivate cream for pigmentation. However, based on your individual condition, the doctor will recommend the best treatment for you. 

It is safe to use a friend's derma roller after disinfection if it has been sprayed with alcohol. HIV is a sexual infection; sharing needles is one of the transmitter. A sterilized roller is thus no cause of fear or stress if someone else has got HIV. Such sterilized tools do not risk transmitting HIV.

Melasma is a skin condition that can be managed and treated, it may not be completely curable or permanently eradicated.

You may have hyperpigmentation after inflammation, which is a consequence of skin inflammation such as a fungal infection. The dark color of the skin is the result of the skin's recovery mechanism. A gentle exfoliating scrub or a vitamin C-rich skin-brightening cream are examples, you can fade the pigmentation by trying them. It is important to use an SPF product as UV rays can aggravate the pigmentation.