My name is R.. I'm 26 and was diagnosed with Bell's Palsy past August, just a month after finding out I was pregnant. I was devastated because I looked and felt like a stroke victim. My doctor's also treated me with medication and told me that it would just take time, anywhere from a few weeks to even months.
Basically, they told me that it is believed to be related to the same virus that causes cold sores. There is a small opening on the side of your skull beneath your ear that allows for a facial nerve to pass through. When you have Bells Palsy, that nerve begins to swell, and can become pinched within this opening in your skull.(Mine started with a tingling feeling on the side of my jaw that felt like I had just eaten something sour.)
This "pinched nerve" affects your facial movements on that side. The doctor's said that it will usually only affect one side and only very rarely will it affect both sides, so that's good news.
Your eyebrow may sag, you do not have the control to close, wink, or blink that eye. You may experience either an overproduction of tears, or dry eyes since you cannot blink that eye like normal. It is a good idea to invest in some natural tear eyedrops to use throughout the day. You do not want the affected eye to dry out as this may cause damage to your eye. (I used the eyedrops during the day and at night, I used an eye ointment and then had to tape my eye shut since it would not shut completely when I tried to sleep.)
Your mouth will not form a smile on that side, so that you look like you just have a half smile. Your mouth may be temporarily paralyzed on that one side, or may even droop.(I had trouble rinsing my mouth when I brushed my teeth; I had to pinch my lips together to rinse.) Eating was a very difficult task.(I had an especially hard time eating in front of anybody because I was embarrassed.) It becomes difficult to pronounce certain sounds when talking.(I had trouble with my b's and p's. Not fun when you are trying to tell somebody that you have BBBBBBells PPPPPPalsy!) It is also difficult to drink from soda or water bottles. A straw helped if I used it in the opposite corner of my mouth. Your salivary glands are also affected just like your tears. You may experience either an overproduction of saliva, or dry mouth. If overproduction occurs, then you may experience some drooling. My sense of taste was totally messed up!
It is not contagious and affects men and women equally. My personal case began to clear up quickly, so I was lucky. The doctor said that most people recover fully, but others may have lasting effects. I used to massage that side of my face because I heard that it may help, so I thought it wouldn's hurt to try.
I did lots of research online and found out many interesting things about it. It is definitely more common than I thought. Since I have had it once, there is a chance that I may get it again later in life.
It is a very emotional time and it is hard to understand what all that person goes through unless you have been there. It feels like nobody knows what you are going through. Your brother may need lots of emotional support as he goes through this very difficult time.
It was only made easier for me by doing research to fully understand the many changes that had happened to me almost instantly. I think that doing research also helped my family to understand what was happening with me.
I empathize with your brother and understand the tough road to recovery that he will travel, but with much support and time, he will make it through it.
You're a great sister for trying to understand this and help him. He's lucky to have somebody like you there for him right now.
I encourage you both to do some research because most of what I learned did not come from my doctor's visit, it came from my personal research and I'm glad I did it.