For coarse chest hair, you can try a sensitive skin hair removal cream made for men, as these are designed to work on thicker hair while being gentler on the skin. Look for products labelled for sensitive skin (such as those from brands like Veet) and always follow the instructions carefully. Since you have had redness and bumps before, the most important step is to do a patch test 24 hours before full use, avoid leaving the cream on longer than recommended, and never apply it on irritated or freshly shaved skin. After removal, wash thoroughly and apply a soothing moisturizer or aloe vera gel to calm the skin. While these creams are generally safe when used correctly, mild irritation can still occur in some people, so if reactions persist, consider trimming instead or consult a doctor for safer alternatives.