I spilled a bit of juice on my keyboard, what should I do?

Hey, yesterday I spilled juice on my macbook’s keyboard’s shift key. It was like 1-2 teaspoons or 1-2 ml. So, I immadiately clean the key and the spaces around the key. Everything was ok until 1-2 hours ago. I realised that the key is sticky. But everything is working great. I looked on internet, some of the people say, there will be a huge damage like corrosion. I am trying to be optimistic, because lately my spacebar was broken and I gave 500$ to fix it (whole keyboard is changed). I cannot afford another huge price. I am a developer and I need my computer so I do not want to face with any problems in the future. So what should I do? I am really scared if I go a service and they say “Oh you are died, you need to pay another 500$ for keybord and motherboard and bla bla must be changed so give me 2000$”. Please help me with your brilliant ideas and your knowladge. I feel so unlucky and depressed.