Hello, Raysa and welcome!
My name is ***** ***** it will be my pleasure to help you and Ninja today.
I'm so sorry you're experiencing this problem; I know how frustrating it can be.
It's possible that you brought bed bugs home with you, after your trip and these are the bites you are seeing. However, if the doctor definitely diagnosed you with scabies, it's very possible that Ninja was affected, after you returned home and started seeing symptoms, but before you cleaned the entire house. Also, make sure you thoroughly cleaned your suitcases and clothing, shoes, everything that you brought on your trip.
There are different types of mites that can cause intense itching in both humans and cats and here is more information about the type that causes scabies:
Yes, it is definitely possible to become reinfected after spending time with Ninja, if he is carrying something on/in his fur and/or under his skin, as these mites like to burrow. It's interesting that you didn't mention Ninja suffering from intense itching, as these mites usually cause.
It would be advisable at this time, to have Ninja evaluated in person by his vet, and determine if he has any mites and if so, what type. Then, the vet will prescribe the best treatment. The lime/sulphur dips are quite harsh on the skin and the flea and tick shampoo and sprays are not usually that effective. Using a topical monthly flea preventative like Revolution will also treat these types of mites, in addition to fleas, so discuss this with your vet, if this is the diagnosis.
Vacuuming very well and cleaning/washing everything in hot water is great, but you may need a professional exterminator to treat your home. Also, consider Ninja's living space, cat bed, litterbox, food/water bowls. Anything that can't be washed should be thrown out. When you vacuum, you must get rid of the vacuum bag immediately, outside the house, and it should be wrapped securely in a plastic refuse bag.
First, as I mentioned, it would be a good idea to find out what you're dealing with, by having Ninja seen by the vet, a skin scraping (painless) taken, and analyzed under the microscope. He could have fleas, various types of mites, bed bugs, etc.
Once you know what you're dealing with, it will be much easier to treat and remember to treat Ninja and your home, plus your outside area, like a lawn or garden, if you have one.
I hope all will be well with you and Ninja and please let me know how you're doing!
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