Research shows that Nd:YAG laser is effective, with 94% success rate after treatment.
Source: Bekhor, Philip (11 Sep 2006). "Long-pulsed Nd:YAG laser treatment of venous lakes: report of a series of 34 cases". Dermatologic Surgery. 32 (9): 1151–4. doi:10.1111/j.1524-4725.2006.32253.x. PMID 16970696.