Hello, Thanks for writing to Health Care magic, I am Dr , Muhammad Ahmad , I have read your question closely, I understand your concern and will be helping you with your health related problem. I have looked closely into the picture you have attached with your query. It can be two things and what ever it is the treatment is going to me the same for both. It can be : 1) A bug bite. 2) Allergic rash. Treatment is simple and very effective, First,you have to apply a local anti allergic ointment available over the counter , it can be a hydrocortisone cream or any other anti allergic preparation. Secondly you have to use an over the counter antihistamine like Cetirizine 10mg tablet daily for 5 days at night. Try nor to scratch the area. This being said , in my opinion even if you do not use any medication and just use a simple moisturizer this will still get better, as it already has gotten less itchy, but still it is better to use medication to prevent any complication. If there is a possibility of but exposure like your lawn, the place where you walk or any other thing, you can get yourself protected while around these areas. Gut can only absorb a limited quantity of iron even if you eat a Kilogram a day , it will just be wasted through your gut so in my opinion there is no harm in using the supplement you were already using as your body will only absorb the required quantity of iron only and will not absorb anything extra. I hope this answered your question, If you have more queries I am happy to answer you. Regards. Dr.Muhammad Ahmad