My legs have a lot of mosquito bites, and how do I make it stop itching?

MOSQUITO BITES. For itchy mosquito bites, you can try an over-the-count Hydrocortisone cream. Or try caladryl or topix or pramoxine creams, if the Hydrocortisone doesn't do the job.
Mosquito Bites. Store aloe vera gel in refrigerator & apply to affected area. Rub basil leaf on bite. It repels mosquitoes & has anti-inflammatory effect. Consider applying calamine lotion or crushed ice or a cold pack. A 1 to 1 mix of water & baking soda is effective when applied to lesions. You can take oral medications like Benadryl (diphenhydramine) or Chlorpheniramine for itching.