to Purrs
Are you absolutely sure it's Minnie you've become allergies to? If it is then there are things that can help and I'll come onto those but think it's worth exploring whether it is a cat allergy.
About six years ago I started to be constantly bunged up with the most annoying streaming nose, particularly in the mornings. I mentioned it to the Dr when I was there about something else and without any tests he declared I was having a reaction to pollen birch
The congestion worsened over the years and got to the stage where I lost my sense of smell, sounds trifling but it's soul destroying not being able to smell. Anyway, I mentioned this to other Dr's whilst there for other stuff and the comments ranged from steam inhalation to 'tough', until one day a Dr actually listened to me and looked up my nose and discovered I had nasal polyps - after a failed operation I have now discovered a combo of meds that keeps things in check and no more bunged up or streaming nose!
The point to my little essay is that it's worth exploring if there might be another cause/trigger as whilst people can suddenly become allergic to cats/dogs it could be something else. What are your symptoms like when you go away on holiday? Do they ease off when you're not in your own home and/or around Minnie?
If it is a cat allergy then petalcleanse, a product you wipe over cats coats (once a week I think) is supposed to be good, also antihistamines - the newer types are one a day and non-drowsy, nasal sprays, keeping Minnie out of the bedroom would help but I know the battle you have with that one as I have the same - wouldn't even attempt it
You can become desensitised to allergies too but as it;s been going on for 5 years that sounds unlikely to happen after all this time
When I first got my two as kittens my asthma was really bad (repeated hospitalisations
) and took several months to calm down. Also strangely I am allergic to one of my cats but not the other - if I inadvertently rub my eyes after stroking one of them my eye goes all jelly-fied and very itchy, I have no such reaction with his brother!