You need an consultation to evaluate  your condition. Some assessment is needed for giving you the management plan. See a clinical psychologist/ psychiatrist near you.

Hello Friend, Appreciate your interest to seek help in this forum. It's a natural urge to have such feel and thoughts at this age. More you think bad about it, you feel embarrassed and create aversion towards sex, which may  affect your  married life in future. As I notice you are allergic with skin rashes. Which means you have  excess body heat and hormonal changes which can also trigger such urge and thoughts. Nothing to worry. Discuss openly your issues with a psychology counselor, if it's bothering and causing stress in your normal day to day life. Choose online consultation as it will be convenient and easy to discuss openly and approach.

Hi, Good that you are expressing your concerns and seeking help over this portal. Symptoms that you are describing are called as Obsessive Thoughts, which can be recurrent, persistent, intrusive and unwanted and cause marked anxiety or distress to the patient. The patient's attempts to ignore or suppress such thoughts usually fail leading to more anxiety and embarrassment. These symptoms are a part of Obsessive Compulsive Disorder. Many patients also indulge in Repetitive Behaviours such as washing, checking or organizing; in order to suppress the Obsessive Thoughts. These Repetitive Behaviours take up a lot of time of the patient and cause significant impairment in social, occupational, or other important areas of functioning. You will require medications from a psychiatrist (allopath / homoeopath) for the same. Homoeopathy medicines are safe i.e without side effects, treat the disease from the root cause thereby giving long term relief. For any further queries, you may contact me via Practo online portal.

It could be due to obsessions. You can consult me online through practo