When you say "damaged", what does that mean?
Were you diagnosed with glansitis, also known as balanitis? Did that happen after the oral sex? It's only been a couple of days since you received the oral sex, so I wonder about the timeline of your symptoms in relation to that.
Receiving oral sex means you could get gonorrhea, chlamydia, syphilis, genital herpes type 1, and NGU.
At 2 days in, it's very early to have symptoms. Are you using any creams or taking any medications?