I remind her it's okay and that she is 93! She always says "I just don't know what's the matter with me!" Her pride, no doubt... so I try hard to make her feel like it is nothing, "See how fast it is to just change the pad?" She still gets in a tizzy and sometimes cries over it. Other than comforting and hugging her and assuring her it is no big deal, what can I say???
Perhaps you could also follow the events with something that really makes her happy - music, sitting and talking, having a cup of coffee or tea (if she can drink them, depending on her diet), watching a favorite program, looking at photo albums....something the two of you have always enjoyed doing together.