Based on your description, it sounds like you might be dealing with an outer ear infection.
For the next time that this happens...
If you tug a little bit on your earlobe (or elsewhere on the ear cartilage) and it's painful, then you most likely have an outer ear infection (otitis externa). Another common complaint with such infections is ear "itchiness." Many divers use homebrew or over-the-counter eardrops to prevent the outer ear infections associated with diving, snorkeling, and swimming. As with most medical issues, if you aren't sure of what you've got or the problem seems to be getting worse or you're getting more troubling symptoms (fever, nausea, dizziness, lightheadedness, etc.), don't hesitate to see a medical professional about it. Obviously, an ENT would be very helpful, but any internist/GP/primary care doc should be able to care for you. After taking a detailed history to ascertain that this was a scuba-related injury, the physician will use an otoscope to visualize the eardrum, mainly to rule out eardrum perforation.
The scuba-doc.com website has this to say about
the prevention and treatment of otitis externa:
- Prevention of Otitis Externa
Cleanse external canals of occluding wax and avoid trauma from Q-tips, bobby pins, etc. Use a good ear solution to maintain a slightly acid environment. A 2% acetic acid and aluminum acetate solution is a good choice. (The pharmacist either can make this up or provide a generic solution; 'Domeboro Otic Solution is not made or sold by Bayer any more.)
- Treatment of Otitis Externa
Irrigate with lukewarm tapwater or 1.5% peroxide. Eardrops that are slightly acid or contain antibiotics.
Some people also use a specially-made ear dryer device to dry out the external ear canal after diving.
FYI, another very common problem in novices and/or infrequent divers is
middle ear barotrauma, which is
completely different from an
outer ear infection. If I descend very fast (at my limit of how quickly I can equalize my ears) and do a lot of diving in a short period of time (dive vacation), sometimes I'll get a dull ache in my ears. More significant trauma will induce ear fullness or stuffiness and possibly muffled hearing. The best way to avoid middle ear barotrauma is to descend slowly and equalize early/often. Treatment for middle ear barotrauma is different from that for otitis externa.
For a wonderful lecture and info on how to keep your ears healthy while diving, click on the link in my sig. It will take you to Dr. Kay's website. Enjoy.