Try to comb the pet daily so that the dead hair will be removed
Yes the trimming will also help
U can also give supplements like salmon oil 5 ml twice daily
Improper grooming schedule can be one of the cause for shedding. Ideally, once in a two weeks you should go for professional grooming. There should be a gap of atleast 12 days between the consecutive grooming sessions. You can checkout our blog on dog shedding to understand about the causes of shedding better and their solution.
Labrador shed 2-3 times a year. Recently the weather changed in bangalore and they would be shedding their winter coat. It will be there for 1-2 weeks as far as I have seen in my dogs