Skin, Hair and Nail Problems

Hello, 26 male here. Aggressive nail biting habit. I saw a line under my finger nail. What it can be?

I don't have active acne on my back but I have lots of acne scars from years of bad habits of popping zits. I have normal skin type. I want to understand how to get rid of these scars. Am currently using a benzoyl peroxide soap since 3 weeks and it seems to be bleaching my skin making the scars look lighter. How do I get rid of them? Does salicylic acid based shower gel help? Should I alternate between salicylic acid and benzoyl peroxide based products? I do moisturise my skin after shower. Thanks in advance for any helpful tips.

In my cheek seeing darkness.iam attaching the picture.please suggest treatment options... ... ... ...

I had a surgery on my neck 8months earlier. my doctor suggest me to apply contractubex gel. Since December i have been using this on my scars. Lately i notice some darkness on my neck. Is it normal or should I stop using the gel ?

I have got bumps which are like pimples which are red , swollen and pus around my private region. It has become re occuring and its painful

Hello sir, I am having soo much hairfall from 2-3 months. Everytime I comb my hair its either with comb or with the help of hand, almost 10-15 hairs fall everytime. Now I feel that if it keeps going like this I shall go bald in the next few months or years Please help me with this issue sir, as I am not able to figure out that why is it happening. I would be very grateful for you giving me some of your precious time sir😊

............................................ eating chanaa is safe when I have wounds on the foot????...

I have very itchy and flaky scalp from last 5-6 years almost everyday i see flakes coming from my scalp and now i have noticed even my hairs is getting thin and its also breaking

What is the best solution for vitiligo problem? Suddenly before 6 month vitiligo increase. So what medicine and cream best for it

Hello, Can you please recommend me medication or antiperspirant for excessive sweating on face and scalp