The only way to prevent age spots is to use liberal amounts of sunscreen before the age of forty, avoid the sun, and wear protective clothing. The newest treatment
for age spots is an alpha hydroxy acid gel or beta hydroxy acid gel. Retin-A cream, alpha hydroxyacid peels, and liquid nitrogen therapy are other options.
If still the symptoms do not improve then pls get a clinical examination done by a dermatologist as without examination,confirmation of a diagnosis is tough.
I hope that helps.