“…Interferon has been used in conjunction with Laser therapy and, although the immediate effects are beneficial, to date there have been few reports of significant increase in the remission time (Bomholt, 1983), and the longterm effects of Interferon are as yet not fully known (Haglund et al, 1981;Lyons et al, 1978). Various chemical treatments have also been described, including chemotherapy (Smith et al, 1980), with unproven efficacy or side-effects.…”