Strengthen immmunity for children.

  Now my daughter visit kindergarten, am worry, how to strengthen immunity before it.

Your worry is true, and children visiting kindergarten beginning sick, but it's individuality all. And for children are enough two colds for immunity strengthening and receiving kindergarten hardening, but other children all year catching microbes and bacteria.

And which situation having with your daughter we are not informed, but in our forces ready children to kindergarten. And first is hardening needing, by sea, sun, fresh air, children needing staying more on fresh air, just not an alone to walk, and contact with other children's, more contacts with other flora and microbes are more strengthening and forming his immunity.

Sun is in limit right is our friend, on a summer under tress he can take sun baths, where under trees crones entering for a health multiple sunlight. Water procedures too strengthening, swim at pool, or sea, lake opening, contrast shower, pouring over legs with cool water all these stimulating producing strong immunity.

 Children need to sleep at room with a cool fresh air, clean, not wrap his, not create from his a greenhouse plant, and entering in new environments with a not these conditions are happening adaptation stall.

And today having medicaments are for immunity strengthening as remedies with Ribomuyil, with PHR microbes and viruses and leading to forming antivirus immunity.

Still one importance factor is psychologic condition in children, and importance le t s ready his psychic to kindergarten, depressions, cries, tears nerves are worsening condition, if kindergarten causing negative emotions of organism, thus protection forces are weak. 

https://www.nature.com/articles/pr19992361

Abundant salivation.

On my son 3.5 months is abundant salivation begun, does it true teeth are displaying.

Yes, teeth are erupting, but in your case in this age, teeth are not erupting. Baby was born a not formed and development, after his born, lots of glands are developing in his growing and here are having in saliva glands. And they are staying a full-fledged and activity secreting saliva, baby cannot be coping with this, and she is with bladders emerging from mouth, and in your situation is developing saliva apparatus.  And salivation high also having in parasites, but in children older.  Sometimes salivation high having in gastrointestinal diseases, but if your baby eating good, calm sleep, thus not worry.