Is Botox safe with a cold and possible ear and sinus infection? Not on antibiotic, but taking alka seltzer cold.

I am getting Botox for spine injury related muscle tightness. I really don’t want to cancel because it wore off a month a go and really helps me to function better and be able to do more. And my appointment is at 8am and their phones don’t go on until 8:30. So I can’t call before and find out. I have to go to the office either way so I’m not a no show.