bump/lump beneath the skin at the bridge of the nose

That could be an inverted pimple. It usually happens when there's a lot of bacterial build up. I sometimes get those on my nose area as these are the oiliest parts of my face.

I wash my face three times a day with anti-bacterial soaps or facial wash. If none is available for you at the moment, try putting a cotton or a clean cloth dipped in hot or [warmer than usual water] and let it stay for about 5 minutes. Repeat the process until satisfied, this will increase blood flow regulation. And avoid touching the bump, it will worsen things up. Just keep washing your face and keep it clean. It will soon go away.

Hope that helped.

P.S. I also use a mixture of lemon juice and honey to ease the pain and clean the area, getting rid of bacteria but not burning my face with the citrus acid. Don't let it stay on your skin for long though, apply for at least 5-10 minutes, wash with ice cold water and repeat the process at least three times a day.

Good luck!

i have a red bump on bridge of my nose for nearly a year tryed everything dont know what to do