Fluid caused by lymphoedema may be quite limited if you have got it early. It also may be more than you think. I've had one cellulitis event in nearly five years, so I feel that sensible, normal precautions work. Better to waste a lot of Betadine by sloshing it over a cut than get an infection and need antibiotics. Antibiotics are a marvel of our time but not if we overuse them and build resistance. So disinfect when anything happens and save yourself the problem of taking antibiotics more often than desirable. Exercise and massage can do a lot if your lymphoedema is mild. Ten minutes a day may seem an imposition but believe me it's not! If you can manage the problem that simply, you have a really good outcome. Best wishes.