The images featured Stamos, 61, wearing a bald cap to support Coulier, 65, amid his cancer journey,

leading some people to call out the General Hospital alum for being insensitive since he could take the cap off and have his hair back.

“I’m sorry to see a bunch of negative comments as I’ve just begun my cancer journey,” Coulier’s post began.

“It’s our friendship (me and John) and this is how we are handling a very tough time. I’m a comedian and humor is what drives me.

John knows how to cheer me up and I laughed out loud when he arrived wearing a bald cap — being a true loving friend and brother.”