When i was young, i was told by docs i.m allergic to 'nickel' & i had keloids behind my ears & had to get shots. i heard titanium won't harm me?

Correct: Generally people do not react to titanium.

Less likely: Less likely with titanium, but unfortunately, without a trial it is hard to know with metal allergies. Please discuss with your primary care doctor.

Clear nail polish: If you would like to wear titanium ear rings , coat them with clear nail polish. That could help diminishing an allergic reaction.