Get well soon, Rocky!

Sarah Michelle Gellar had to sadly take her son to the emergency room the night of Thursday, Jan. 11. The actress took to social media Friday morning to share the sad news with her fans.

"Well I made it seven years before I had to take one of my children to the ER (I think that's a pretty good stretch). It was a long night and apparently a nasty virus, but thankfully Rocky was released," she wrote alongside a photo of the four-year-old little boy's hospital wristband.

"I'm not going to lie, watching your child not be able to breathe, is the most helpless I have ever felt. Thank you to all the great doctors and nurses (and staff) who work tirelessly 24 hours a day to help," Sarah Michelle continued.

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The Buffy the Vampire Slayer star and her actor hubby, Freddie Prinze Jr., previously welcomed Rocky in September 2014. The duo are also parents to a seven-year-old daughter, Charlotte, who was born in September 2009. The little girl — who is clearly taking after her famous parents! — just landed her first acting role in a kid's production of The Lion King.

"And thank you to his big sister, Charlotte, who would not leave his side. The best moment was when I was filling out his paperwork, and I was asked if Rocky was single. Laughter is definitely a great medicine," she concluded.

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During Rocky's recovery, Sarah Michelle couldn't help but find the humor in the situation! "Thank goodness for #iPhones and #InspectorGadget when your little one is sick in the ER," the Cruel Intentions actress tweeted alongside a funny photo of her son watching a cartoon on the phone while lying in the hospital bed.

We're so glad to hear he's doing better!

Click thorough the gallery below to see Rocky and Charlotte and more of Hollywood’s cutest kids!