Problem with Macbook Track-Pad.
Dear Apple Users.
I have a MacBook pro 2011 built machine. It is still working fine in aspect of processing issues. Last year about this time I split some orange juice on its track pad. The track pad stopped working properly and staring and clicking on it self. Thus, I decided to use an external USB mouse . After 6 month I took it to a repair shop and told them the story. The repair man opened the back lead of my laptop and took batteries and hard drives apart. He used an spray and tooth brush to clean the track pad and then reassembled them. After that, the laptop was fixed and working fine as before. After one week I faced to that problem again. It should be noted that, I didn't split any water or juice on it this time, the problem has been initiated for no direct reason. The pointer was staring around and clicking on itself again. I thought this must be due to the moist environment that I live in. So, I took a hair dryer and hold it on the track pad for few min. I restarted the computer and it was working fine again. This problem had been occurring every 2 weeks more or less and I had same strategy to fix it. two days ago same thing had happened again, I tried to apply the same approach to fix this problem. Unfortunately, it doesn't work more than 10 min after holding the hairdryer on it and making it warm.
What is the problem, Do you have any idea, about dealing with this misfortune event.
Your help is much appreciated.