A. The redness to the skin and patchy hair coat could be a number of things - external parasites, allergies, hormonal problems. The cough and "sickness" (I'm assuming you mean vomiting) are concerning as well, and each of those symptoms alone could be the sign of many problems. I'd encourage you to visit your vet, or engage in a consult with us so that we can get more information and give you some specific ideas about what might be going on.
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