Hi Candyman,
Reef tanks should not be treated with any type antibiotics or chemical medications, IMHO. Any of these will have deleterious effects on the beneficial bacteria and probably infauna in your tanks.
You can try treating with the natural remedies suggested by Alice and, in the meantime, set up a hospital tank if yu feel serious medication is needed. You can do this with a rubbermaid tub, airstones and heater, using water from your tank via water changes. This would be a temporary setup during treatment and would have to be monitored closely and with water changes to prevent a cycle.
You might also try a freshwater dip if parasitic infection is suspected. Be careful with those poisonous FoxFace spines whatever method you use!!
Dick
