One thing you can do is to click on someone's username (in blue, beside their avatar/picture). This will take you to their profile page, where you will find a button to "support" that person. They will get an e-mail that you are supporting them, and an invitation to "support" you in turn. Hope this helps!
The side effects of allergy medications keep some people from using them. Natural remedies can be a great alternative, but some are more effective than others.