If the product's side effects are not satisfactory to you, I recommend you stop using the product.
I am recommending that you read the product information to decide whether the product is safe for you. There are many warts products on this page and you may be interested in the products you see.
If the product doesn't have side effects, you may be able to buy the product at any drug store, or in your local pharmacy. I will not sell the product. If you are worried about the side effects of the product, you can ask the seller to show you a written prescription. If the seller refuses, then you can write to your local pharmacy.
This is a general rule of thumb, and may not apply to all warts products.
Some warts products claim to be topical because they are applied to the skin, and may contain chemicals that are used in skin care products. In my opinion, some topical warts products contain too many ingredients and may be harmful to your skin. I have never used any topical warts product. I have not had any side effects from using a topical warts product.
The FDA has no information on the effects of topical warts products on skin.
When you are choosing a topical wart product, it is important to do your own research.