FIL recently had shingles, around 3 weeks ago. My DH thinks I’m overreacting but we have 2 small children (newborn and 18 months) who’ve not yet had chicken pox. I’m worried he might be infectious. We are meant to be going on Boxing Day and staying till after the weekend. I have a great relationship with ILs but anxious FIL is still contagious/infectious. Honest opinions please.