Thank you javakittie for reassuring me about the money issue. the rats and their many illnesses always get me down,always,always and i'm sure everyone on this forum knows that feeling!!
i've been scouring ratguide.com for all kinds of clues.
so far i've come up with a bit of a plan, let me know what you think :
1. remove all wood from cage and replace with new materials (too big to freeze and gets rid of the hassle for future troubles)
2.clean,sanitise,bleach and rinse cage/accessories
3.freeze newspapers/foods which may contain mites (seed or lab-blocks?) for at least 48 hours before using
4.redose all rats with revolution and keep nails trimmed
5.start an elimination diet for genevieve to make sure the skin irritation isnt due to food alergies (ratguide suggestion)
6.add ecnaecia (spelling?) to water to assist with immune system
7.have vet test for fungal or bacterial problems.
i was going through the ratguide and checking through the lists of skin problems and it seems to come down to either parasites,food alergies or another skin alergy like dermatitis or fungal infection. so i think trying to eliminate things as the cause might be a good idea. i'll add the childrens benadryl to that list.if in the end i really can't find the cause i may invest in the hydrocortisone cream/ointment for her because the most important thing is that she is comfortable and happy.
also i didnt mention this because i didnt think it would be connected but i've noticed for a little while that genevieve has been drinking more water from the bottle than usual for the last few months. -not so much that i am really worried but i have definitely noticed and have noticed that she drinks more and more frequently than the other two girls. I mention this because i found this article in ratguide
http://ratguide.com/health/figures/pyod ... gure_5.php
the rat here looks much,much worse than genevieve but the increased thirst in that case made me wonder if genevieve's is related to her skin condition.