My 5.20 month old son is irritated and can not sleep well from past 3 days .... he is eating less than usual

A. Teething could be happening with your child probably which is why this is happening loss of appetite irritation itching into the skin of a lead to this kind of behaviour that your child is having right now massage the gums of your child with a soft cloth and start with tablet number 21 still if you feel the problem is that and check with the doctor