You must be healthy everyday, my son.

My son is three years old.  He is so lovely.B is adorable but his resistanceconstituent is weak.  From the time he was six monthsold up totill now, we have to take him to the doctor nearly once a month. It make us feel unhappy. EverytimeEach time when the nurse givesor takehim an injection for him, he crycries so pitifully that I crycried along with him.

I don'tdo not know why he gets a cold so easily.  Once he does gets a cold,he will cough,If he cough,he willcoughs so badly as if he has asthma.  It pained make us feel terrible. In winter, other children can play outdoor ,Butbut we can only take him out in a goodwhen there is plenty of sunshine day.

Some timeSometimes, I think I should learn something about medicine. doctor, If I become ama doctor, I can take good care of my son and my family! Many people tell told me, "Don't worry, when he grows up,ithe will be OK." Yes, I believe in their words but now  it, my son, you must healthremain healthy everyday!

天下父母心, 不過 you must know yourrules of punctuation spacing.  If you don't know, see

http://www.italki.com/knowledge/page/Mechanics%20Of%20The%20English%20Language.htm

If you don't understand, ask! :)