One thing I've done a few times with varying success rates is to take two pieces of paper and draw identical symbols on each. The symbol has always been the different for every "case" and I made it up myself so it would have personal meaning to me. What I would do then is give one to a friend and told them to focus on it whenever they had a headache or stomach ache or cramps etc. and I'd keep the other in a safe place and focus my own energy on it in a healing manner. I've had some tell me it works and others tell me it didn't. The latter are the people who didn't follow my instruction to keep it on them at all times.
With a bit more experimentation, I may consider posting this. It'd help if some others would try it out themselves and give feedback on the results.