Skin, Hair and Nail Problems

I am having a vertical black stripe on my right toe nail since 2-3 years but i have ignored it but recently i have got a small patch to the left of it as shown in the picture. I am really scared if i have subungual melanoma or not. My parents are ignorant to it please help me what to do with it.

Can sideeffect of steroid appear after 2-3 year of stopping it ? Can i experience side effect after 2-3 years and nothing at that time ?? Like is used topical steroid in 2017 and having side effect in 2020?

I have several dark spots on my nose. Overtime they are increasing in number and now I also have a few on my cheeks or just below my eyes. Most of them look like brown spots while some look like tiny moles on the skin. I have a combination sensitive skin and I'm not prone to acne. I use a sunscreen when I go out and also cover my face. I would like to know the reason these spots are appearing and how to lighten them or get rid of them completely. I am almost 28 years old unlike the what the app calculated.

Sir how to remove sun tan from hand and leg and keep clean and also neck darkness. And take care of crack heels.

I've little bit of scars & almost every area of my face has seen pimples. I'm just fed up of this & want to get rid of it ASAP.

What is the use of lobate cream ? (Clobetesol -0.05%,miconazole -2% and neomycin 0.5%) I never knew it has steroid , it was given to me for wound healing on head due to accident. Once i applied it on acne and it worked good so i used to apply it sometime but its around 2 years back. Can it has effect on my skin now??

Can I get any suggestions got Yeast infection, any doctors here , I looking for best doctor for male yeast infection disease, and suggestions

Lightly scratching and then suddenly start itching this is not for particular body part any of the part, after some time it will go off.

I'm using morrf5 for 5 months with multivitamins for AGA. My hair loss is very less. But I'm loosing my density. Dont know y. Is ther any serum to improve density or it is just hair cycle? So that I can continue with minoxidil..pls help

What kind of foods or treatments help to get rid of pimples and to arrive at fair skin does chemical peels really work out in this case