most helpful answer you can get an infection from any scratch. a dog a stick a fingernail etc. a dog is really no more risky than any of those things. basically anything that breaks the protective integrity of your skin has the potential of causing a secondary infection. you have done the proper thing by immediately washing the wound using an antiseptic and a topical antibiotic. changes are good that you will not get an infection but if you see progressive redness swelling or pain at the scratch site this could be a sign that the wound is becoming infected.
can you get an infection from a superfical dog scratch? . the scratch didn't bleed and it was cleaned with hydrogen peroxide and applied neosporin after.