Skin, Hair and Nail Problems

Hello doctor, I was on treatment of isotetrin for acne for 7 months what i got was clear skin and brighter skin tone, I wanted to know what supplement should I use to keep that skin color preserve, I was advices for vitamin A rich foods would help, but since my busy lifestyle It is not possible, so I started intaking Multivitamins which has VITAMIN A 10,000 IU dosage, I wanted to know will that help, I know it could cause liver problems since this is fat soluble, for that I have planned for monthly LFT tests, to check if my liver is good with it and If I continue this will this affect my body's capabilities to produce its own Vitamin A?

I am having a ulcer like thing on my inner lip...is it aphthous ulcer or cold sore... It bleeds when I wake up in the morning, there are Lil bit of clots...it was painful , not now ..looks ugly...i am attaching a pic..what is the diagnosis please help so that I can apply medicine...i am at a remote rural place... can't have access to doctor...is it herpes...i am having real anxiety

Yesterday I accidentally fell boiling water on both of knee area and cooled down with cold water and after that I'd applied suthol and dermocalm lotion on it,right now though there's less burning sensation but it has blisters.What to do?

I have developed some black marks on the skin since 3 months .marks are on the nose & both sides of nose below eye It is looking very odd n getting very depressed because of these marks on face. Attached the image of the marks in the photo . Please suggest what are the marks & the treatment of the same

Is this hair loss is alopecia or normal hair loss in the scalp? I have attached the pic below. Pls check and do reply as it is stressful

Causes of excessive Head sweating ? Also hair loss in early age. I have low vitamin D levels. I m so depressed.

I have pcos because of which I am into vegetarian diet.How do I supplement vitamin b12 as I have acne prone skin? Which form of vitamin b12 do not cause acne? I had got bad acne due to injections and high dose supplements.

I had acnes a year before, now i have a black pimples and a pimples marks all over the fore head and chins , so how can i reduce those black pimples and pimple marks...i m not using any medications i only use minimalist face cleanser..and i do have oily skin too

Am having nail thickening vth pitting nd blue nd yellow colour nail ...one of my doctor suggested aqurea hf urea40% cream gel..how effective ness,..let me know please

Is dutasteride same as aldactone ?? For female pattern hairloss .Is their any side effects?? Can some one tell me the difference.