Does cyclosporin have long term immunosuppression effects? I took this 2/3 years ago for allergies but it did not help much. If so, what can I do?

Cyclosporine. Though not always the case, cyclosporine suppression of the immune system is typically only during usage and a short time after use. The main use for allergies is when someone has hives unresponsive to most other therapies. If you are truly concerned, see an immunologist who can do a basic immune system work up to discover or refute your concerns.