It takes a few days after surgery for the pain to subside, and and should not take a shower for a few days, and needs to be covered when showering thereafter for a week or two, and should not lift heavy objects for a few weeks also. The gastrologist or surgeon who does the surgery will give you the best instructions. Just use common sense also, and avoid anything that can pull the tube from your stomach, which can be secured several ways, as not to dangle, and get pulled suddenly. The other thing is with chemo, your immune system can be weakened, and easily catch infections from other people, pet feces, gardening, so you need to use personal protection, hygiene, for that.

I have a mediport for 4 years, and avoid being stuck by a needle for an IV in most cases, but not always, and care should be taken by those trained too do so. The downside is infections can occurr, go systemic, if healthcare personal do not follow proper access, cleansing. The peg-tube can also get infected, go systemic, and proper care needs to be taken with that also.

Good luck, and other peg/port users may add.