Those are small items to replace. If one or two packs are dried out, just replace them. I'm more concerned with medical tape drying out and refusing to stick. I have used a little antibiotic ointment on a 2x2 to clean wounds. A small bottle of betadine solution is handy in the FAK but must be sealed extra well. If it leaks it's a disastrous mess and can ruin most everything it touches due to strike through.