Answer
(Fatwa: 228/228=M/1429)
It is possible for men to see the jinn and talk to them. It is proved by the event of Lalaitul jinn in which the Prophet (صلي الله عليه و سلم) went to the jinn and preached Islam among them. Although, the jinn are hidden form the eyes of mankind, but some people like Aamil make them appear through their special prayers and talk to them. There is no wrong to go to such people for treatment of spell and charm provided they their acts must not go against the Shariah i.e. talisman and amulet must not be through words and sentences which cause infidelity or shirk (ascribing partener to Allah), or words which are meaningless and suspeciosu. However, it is shirk (ascribing partener to Allah) believing the aamils and their acts as the real effective. (Since real effect is from Allah)
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband