Skin, Hair and Nail Problems

I just saw that i have a small yellow spot on my right arm bicep. I have also attached a picture for reference. There is no pain, no irritation or any thing else. What could it be? Please suggest what steps should i take.

I have taken up the treatment from practo for the allergy my son is having since last few months now. It has no itching i suppose because i havent seem him itching there. However, it has black erroded uneven skin texture there at the point of allergy and also some small acne kind of on the leg and feet. I have veen giving him teczine 4 ml every night and applying the flutivate cream also every night. But no change till now and its been 1 week atleast. Please help and guide. Why this allergy and what to do for the treatment?? Pic also attached for reference. Thanks a lot.

My HLAB27 test by PCR METHOD is negative, and MRI OF SI JOINTS PELVICS AND HIPS is quite normal , MRI was done on 25 FEB ,after post viral infection I am feeling severe hip pain and waist and lower and middle back pain ,last week my ESR 16 MM CRP .68, still can be chance of ankylosing spondylitis

I am having angiokeratoma on scortam..it gets bleeding. Is it any bad sign? Please suggest Very worried

Hello doctor. I am having problem of itching as well as sweating. If I sit on the chair for long time then I gets sweat on my buttocks and gets sweating. Please consult me

My mother is having some sort of skin allergies since 2 years , shown many doctors homeopathic ayurvedic allopathic , but no relief. The skin lesions were dry scaly and very much itchy. She is in amidst her menopause state not completely stopped but periods happening in 2 months. Few weeks back shown a derma who told it to be psoriasis gave some cream and levocet ( as told by my mom) . But she got no relief , then few days back she went to ayurvedic doc , he told it's due to high level of Pitta . Gave some medicine , but she isn't feeling relief and getting anxious. She use to itch it very badly . Please tell any solution

There is too much of dark patches on my hands due to dryness.. As I am mother of 2 year old, I frequently use hand sanitizer and wash my hands often, due to this I have dryness and dark patches on my hands.. Please prescribe me some medication and oblige.. Thank you.

I have 3-4 birthmarks particularly on my leftside of nose. I have attached picture for that. Is it possible to remove those birthmarks completely and what could be the possible amount doctor will charge? Kindly help.

Excessive itching on my legs which creates fine black lines. It looks scaly and vein like. It leaves marks on my legs and keeps happening every year no matter what I do or how many doctors o have consulted online on practo. Kindly help. The last doctor suggested these medications which didn't help either.

Due to some personal issues, I cut my hand 4years ago. Since then I have been trying many ointments and tablets and lotions to get rid of those scars but of no use. It's still same as that day. I got fed up with the ointments, please let me know if there is any treatment for it. Else is it ok to wear a tattoo on it.