Skin, Hair and Nail Problems

Recently I found out that my armpits have become black yellowish  , not sure what has caused it .But I do remember few months back I was using a deo that was causing buring sensation in my arm pits but I ignored it and continued using it . Today after finding this out I am bit worried is it because of that or something else . What should I do to get this fixed . Please advise . I am attaching the pics for reference .

Is there any treatment for sun damage wrinkles that can repair and rejuvenate the skin instead of just temporarily improving it?

Right side of chest bigger and hangs sown. i experience pain when it is pressed. please let me know what it is and solution to it. Pic attached!!!

I am using Tab. citrizine, Tab. ZTI-SB 130 mg and using Momate After using cream it's become good and clear but if I Stop it for a week and again start. Taking treatment since 2 years no improvement.

I've kissed a girl I'm suspecting that she have hsv1 that is cold sores. But when I kissed her there was not an active outbreak. Her lips and cheeks were all okay. My question is as there was no active outbreak what is chance of me getting HSV 1 in percentage? Please reply.

I have ibs issue that's why I have to go toilet lot many times and to wash my hands with soap or handwash frequently.can it cause me skin cancer use of soap multiple times what to do to avoid soap and all because sometimes they stick to hands and become white

.hey doctor i am nikki my lips are very dry in these days and. many times bleeding in my lips please some recommendations in lip care product and lip balmPlease suggest a good lip balm for dry lips

I had toenail fungus last year. It was treated properly and normal nail grew back. But now it's again coming back. Please help me. Why it's happening again and what should I do to get rid of this permanently?

Since a few weeks now I have been having this dry skin and it itches sometimes it's only on one side right side of the ball sack how do I treat this ? I have used anti fungal powder but it's still the same,

My 8 year son suddenly developed some kind of pimples in hands and it's started in upper lips area also from few days I have attached the photo of it .what can it be and what should be done for it.is it anything to be worried about .