Hi welcome to health care magic forum,
Ear pain with itching called external ottitis.
Rain may increase the chance otomycosis
or fungal infection
because of high humidity in environment.
sometimes wax may cause itching and pain too.
Using ear buds for itching may cause microtrauma . Subsequently it causes pain.
In my opinion don't put any ear buds anymore.
Put otogesic drops 2 drops 3 times daily and take a milder antibiotic like azithromycin
500 mg once daily for 3 days.
Take an noninflammatory drugs like Lyser - D 1 tab 3 times daily for 2 days along with antireflux agent if you have hyperacidity
Avoid head bath.
Wait for 3 to 4 days and if no relief than see an ENT specialist
for proper evaluation.