Is there a good homeopathic cure for hydroceles?

No. Hydrocele, if need treatment, is a surgical condition. Some guys can live with the symptoms of hydrocele and therefore may not need intervention.
No,... No, no professional has ever cure anyone but just modify something ... So, no cure from any discipline of medicine...
No. Observation is prudent if there are no symptoms however.
No. Hydroceles in infants, following trauma, epididymitis or torsion of an appendix testis usually resolve spontaneously. Otherwise surgery is required to cure a hydrocele. Spontaneous resolution of hydrocele might be confused with a homeopathic "cure", if homeopathy was tried, but in fact would have had nothing to do with it.