Baby touching faces

Just ranting!! My baby is at the phase where she likes to touch people’s faces now when she is held close. I get so anxious when people other than my husband and I carry her because she will touch their faces and then proceed to suck her fingers next… I just feel so gross… honestly I want to quickly jump in to clean her hands but that also would seem rude 😭 My husband is chill about it but I just get so irritated. Are all mummies’ hearts like this?!?!