R.H.
Might be a silly question, but how long are you away from home? Can you just wait and give him a bath when you get back? Waiting 7-10 days to get a bath has never killed anyone in all of history that I am aware of... you could always spot clean him with a soapy washcloth if he needs it, but why put yourselves through all this trauma over getting in a full bath, if it can be avoided?
My newborn (5th child) had hip dysplasia and had to wear a harness that we could not even take off for diapering let alone take off for a shower.... After that first month, we could finally take it off 1 hr. per day so I could finally put it through the wash and give him a bath.
Bathing so often is really something common to us in the USA, but is not really necessary. With 5 kids at our house, our kids are usually scheduled to only get 2 baths per week. Oftentimes with all the activities we have going on, it only happens once. No biggie. Hope this helps you to put bath time into perspective. :-)
~ A mom that's learned to relax and not worry about the small stuff