Ashipu was considered to be both a healer and a magician. There were three steps this God would take when approaching ones sickness.

1.) Discover the illness

2.) Find out if it was caused by the patients sin/ human error or by the Gods

3.) Fix the patients sickness (through charms and spells)Ashipu thought most of the people's sicknesses were caused by the Gods. (Maybe the person did something to disrupt or disrespect the Gods.) In order to get rid of the "demon/s" or "bad/ negative spirits" Ashipu would praise the Gods through charms, chants, shines etc. 

http://best.berkeley.edu/~mesa/comm/group_1/angela.html