Thank you for your query.
Your 3 month old son is having the following problems:
1. Loose motions about 10 times a day for the past 7 days
3. Pulling his right ear
The incresed frequency of motions warrant that you show him to a doctor who will advise appropriate medicines. Teething
is not present at 3 months of age and hence the drooling is not because of it. Drooling is common at this age and I shall not worry about it. Similarly I shall not worry about the child pulling the ear unless he is irritable and cranky.
As mentioned kindly show him to a doctor for the loose motions.
I hope I have answered your query to your satisfaction.
Wishing your son an early recovery.