My IPhone front camera is foggy?

I recently bought an iPhone from someone and I noticed that the front camera is foggy, almost as if water got in it. The camera now takes very blurry and foggy pictures and I was wondering if there was any way to fix it? (I already tried wiping it but it's on the inside.) thanks.

HORRIBLE battery life on iPhone 4s?

I have an iPhone 4s, I've had it for a bit less than a year now. I have the newest update, iOS 8.1. I always leave my brightness on or near the lowest setting. My problem is when I go to my high school I come in with a 100% battery life, and I leave with a 10% to dead phone. My school is only 6 hours. Some rooms have Wi-Fi so I use that as much as I can. Obviously it's school so I don't use my phone a lot, study hall included I probably only use it 45 minutes at the most in school. Why does it die so damn fast and how can I fix this?

Yellow pit in the inside of my bottom lip?

So, I don't know when i got it, But i just noticed it today. It's like a palish yellow pit on my bottom inside lip. It's like there were your lip curves to go to your gums to your teeth. It hurts intensely. Whenever i move my mouth it stings. It goes in. I've had cankers and cold sores but its not one of those. I can't get a focused picture of it with my iphone, So i can't show it, But, It's very sensitive to spit. I can't even smile. What is this thing? What do i do? Should i see a doctor?

How to get iTube back on my iPhone?

I used to have iTube on my phone, but I then deleted it because it was taking up too much space. Now I want it back.
It has been deleted of the app store, and I've been looking for other apps similar to it, but none are the same.
Is there any way to get it back?

How to restore photos and messages from my iPhone which is lost?

I lost my iphone at an event yesterday and couldn't find it eventhough i tried using the Find my iPhone app. So, i bought a new one, (a second-hand actually), and i want to restore back all my photos, notes, contacts, messages and everything that is important from my previous iPhone to my new one. How do i do that?

I downloaded a secret diary app on my iPhone. If I write in it everyday will it take up much space?

So far I have 50 gigabytes and I also constantly download new music i hear on the radio and like.

I'm going to write about how much of a freak I'm, boys never ask me out, I'm the biggest freak in my year, that I'm a flat chested 16 year oldand how boring I'm, my dreams will never come true and how I'm flunking in maths and such.

So anyway do you think writing in it for the rest of school (I graduate in 3 years) won't take up much space on my phone?

I wouldn't get a real book diary I don't trust them even if there's a lock on it I had one once and my idiot friend unlocked it with a bobby pin

How to upset my Iphone 6 plus from 8.0 to 8.1?

I don't want the newest update, because I want to jailbreak. My phone crashed and is on the loading screen. It won't back up without doing it to the newest update. Someone please help.