This puzzle started out as ordinary 8-directional word-search puzzle, hiding 19 diseases amongst lots and lots of letters. But then, six letters were infected and became ill, and things became very strange....
In the words-search below, 6 letters have odd properties. Whenever a word 'reaches' one, something happens starting with the next letter. To be clear: There are 6 different affected letters with 6 different effects, and every time a letter is used, the same, letter-specific effect occurs.
( This is not what is going on in the puzzle! )
Say the letters a & e have become ill. Whenever a is reached in a word, the search direction is shifted one step down, while every time an e is reached, the search direction is shifted one step up. In this case, the word Stackexchange would be found as:
There are 19 diseases hidden in the grid
6 letters are sick
the 6 sick letters fill in the colour-boxes in the solution-grid. Arrange them properly, and they will spell the favourite medication prescribed by a specialist. (A very special doctor.)
The 19 diseases fill in the white/grey spaces in the solution-grid. The grey spaces will spell out the favourite catch-phrase of the same specialist.
To solve the whole puzzle you have to:
Find all words
Find the 6 sick letters
Specify the 6 'illnesses' (=rules) of the special letters
Completely fill in the solution grid
No partial solutions on this puzzle please!