After viruses from the air enter the mucous membranes of the upper respiratory tract, they begin to multiply in the epithelial cells of the mucous membranes. After damage to the cells of the mucous membranes of the upper respiratory tract, viruses enter the bloodstream and cause intoxication.
Rather, illness from the fact that we blame ourselves for bad deeds. All negative emotions affect our psychological health, and from there already ailments at the physiological level. Therefore, if you can easily forgive yourself for your sins or do not worry about it at all, then you don't have to worry :)
I believe that even if it is for sins, it is definitely not punishment. Because the Epistle of James clearly says:
"In temptation, do not say: God tempts me; because God is not tempted by evil and He does not tempt anyone, but everyone is tempted, being carried away and deceived by his own lust; , having conceived, gives birth to sin, but the sin that is done gives birth to death. " That is, in fact, the disease is not a punishment, but a consequence.
For example, when we touch a hot kettle or iron, we burn our hands and then they hurt us. Accordingly, we understand that such things should not be missed. But no one will say that the iron punished him or the kettle. This is stupid. It is logical that the hands will hurt from burns. It's the same with sin. When we touch it, we get certain consequences that are inherent in the world.
Another thing is that sometimes illnesses may not be associated with sin. For example, there are many people, including those who were canonized after death, who suffered from any kind of disease. These illnesses, in my opinion, did not at all indicate the presence of some serious sin.
Perhaps we are talking about a test (as in the book of Job), perhaps we are talking about the consequences of sin. One way or another, you need to be treated, try to remain an easy, pleasant person for those around you, not curse God and everyone around you. And from what your illness - this no one will answer, I think for sure. The actions of God, and most importantly the meaning, essence and significance of these actions for us, ordinary people, are not obvious, and we can hardly understand or decipher them.
Our illnesses (we're probably not talking about a cold?) are not punishment for our sins. They are a test that must be accepted and passed.
"And while passing I saw a man blind from birth. His disciples asked Him: Rabbi, who sinned, he or his parents, that he was born blind?
Jesus answered: neither he nor his parents sinned, but this is so that the works of God may appear on him ... "(John 9: 2)