Prohibitions in a dream symbolize your subconscious desire to do something forbidden. In fact, this dream is a sign to do it. If you are not allowed to eat candies in your dream, go and buy some and treat yourself. If you are made to work hard and you’re not allowed to relax, go on a holiday. The only advice is to know your and other people’s limits.
If you are the one who forbids somebody to do something, it signifies that you may have overreacted and someone may be angry with you.