You'll need to keep up on eye, paw and nose care, or things can take a downward turn rather quickly.
With the eyes, a common issue is the buildup of eye gunk, also referred to as eye boogers. If you notice excessive discharge, this can be due to a small cut on the retina or even an eye infection. However, a minor yet chronic amount is often just natural discharge that can get trapped around the eyes.
Routinely use a canine eye wipe to clean up around the eye area. This should be done anywhere from once per day to several times per week.
With the paws, while you want your Boxer to walk on a variety of surfaces to toughen up the paws, this by no means that paws can even come close to being invincible. Walking on small pebbles and both heat and cold exposure can really do a number on the pads.
In addition, dry pads can quickly develop into itching, which leads to gnawing, and that can turn into peeling and cracking.
If your Boxer tends to develop paw issues, apply a quality paw wax 2 to 3 times per week. Look for a fast absorbing product that allows the paws to breathe.
With the nose, small issues can spiral pretty fast. Keep an eye out for dry nose issues. If you do notice this, don't hesitate to use a good nose balm. A quality balm can protect from too much sun exposure, chapping from cold winter weather and general drying and peeling issues, as well as heal many problems. If, however, the nose is so cracked that that it is bleeding, this is your sign that the vet will need to treat this; most likely with a topical antibiotic.