My son is 2.5 years. Sometimes he urinates in pampers while in car seat. Sometimes his urine comes out of pampers and his pants and seat become wet. Once I got whole interior washed, but then he did it again in few days. Getting whole interior washed again will be expensive and not feasible again and again. I have another infant 1 year. Kids may often keep doing such a thing every few months or weeks. Should we keep washing the interior again and again, or once it gets dried can we continue with life without focusing on urinated area (considering that wet hands while going to Masjid may touch seat or wet cloths after wadhu may touch the seat) ? Kindly advice.