I'm sorry to hear that.
As is becoming distressingly common in this forum, some of what you have been told so far well may be incorrect, e.g., "It is a simple bacteria infection that can be fixed easily with eyedrops," "Just get some topical cream and you'll be all set." According to your post, it's not yet even certain what you may have.
"Pink eye" is a layman's term for an infection of the outer-most layer of the eye, or conjunctiva. Medically termed conjunctivitis, it may be viral (often associated with a cold), allergic (often associated with allergy season, but can be due to cosmetics, drugs & other substances) or bacterial (typically staph or strep) and each is addressed differently.
The viral type has no true cure that I am aware of, and usually resolves within 2-4 weeks. Symptomatic relief may be obtained through the use of OTC eye drops & cool compresses. If the infection is especially bothersome, your physician may prescribe steroid drops.
The allergic type is treated by removal of the irritating agent(s), and OTC eye drops & cool compresses. Antihistamines can also be helpful. Again, if the infection is especially bothersome your physician may prescribe steroid drops.
Bacterial conjunctivitis is the only one that will be benefited by prescription antibiotic drops or ointments, preferably of a broad spectrum type. While improvement with medication is usually fairly prompt, some cases do require prolonged treatment.
A physician will be able to sort out the exact diagnosis & appropriate treatment.
In the meantime, the viral & bacterial types are contagious, and one will want to avoid sharing masks, towels or even shaking hands with others. Keep fingers away from the eyes, and wash hands often.
Untreated, the condition could get worse & interfere with scuba.
This is educational only and does not constitute or imply a doctor-patient relationship. It is not medical advice to you or any other individual, and should not be construed as such.
I do hope it works out for you.
DocVikingo